Documentation ¶
Overview ¶
Provides an API for constructing data processing pipelines.
The nodes defined in this package just define how nodes can be linked together not the actual implementation of the transformation functions.
Index ¶
- Constants
- type AlertNode
- func (n *AlertNode) Alert() *AlertNode
- func (a *AlertNode) Alerta() *AlertaHandler
- func (n *AlertNode) All() *AlertNode
- func (n *AlertNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *AlertNode) ChainMethods() map[string]reflect.Value
- func (n *AlertNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *AlertNode) Count(field string) *InfluxQLNode
- func (n *AlertNode) Default() *DefaultNode
- func (n *AlertNode) Delete() *DeleteNode
- func (n *AlertNode) Derivative(field string) *DerivativeNode
- func (n *AlertNode) Difference(field string) *InfluxQLNode
- func (n *AlertNode) Distinct(field string) *InfluxQLNode
- func (n *AlertNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (a *AlertNode) Email(to ...string) *EmailHandler
- func (n *AlertNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (a *AlertNode) Exec(executable string, args ...string) *ExecHandler
- func (n *AlertNode) First(field string) *InfluxQLNode
- func (a *AlertNode) Flapping(low, high float64) *AlertNode
- func (n *AlertNode) Flatten() *FlattenNode
- func (n *AlertNode) GroupBy(tag ...interface{}) *GroupByNode
- func (a *AlertNode) HipChat() *HipChatHandler
- func (n *AlertNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *AlertNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *AlertNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *AlertNode) InfluxDBOut() *InfluxDBOutNode
- func (n *AlertNode) Join(others ...Node) *JoinNode
- func (n *AlertNode) Last(field string) *InfluxQLNode
- func (a *AlertNode) Log(filepath string) *LogHandler
- func (n *AlertNode) Max(field string) *InfluxQLNode
- func (n *AlertNode) Mean(field string) *InfluxQLNode
- func (n *AlertNode) Median(field string) *InfluxQLNode
- func (n *AlertNode) Min(field string) *InfluxQLNode
- func (n *AlertNode) Mode(field string) *InfluxQLNode
- func (n *AlertNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *AlertNode) NoRecoveries() *AlertNode
- func (a *AlertNode) OpsGenie() *OpsGenieHandler
- func (a *AlertNode) PagerDuty() *PagerDutyHandler
- func (n *AlertNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (a *AlertNode) Post(url string) *PostHandler
- func (n *AlertNode) Sample(rate interface{}) *SampleNode
- func (a *AlertNode) Sensu() *SensuHandler
- func (n *AlertNode) Shift(shift time.Duration) *ShiftNode
- func (a *AlertNode) Slack() *SlackHandler
- func (n *AlertNode) Spread(field string) *InfluxQLNode
- func (a *AlertNode) StateChangesOnly(maxInterval ...time.Duration) *AlertNode
- func (n *AlertNode) Stddev(field string) *InfluxQLNode
- func (n *AlertNode) Sum(field string) *InfluxQLNode
- func (a *AlertNode) Talk() *TalkHandler
- func (a *AlertNode) Telegram() *TelegramHandler
- func (n *AlertNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *AlertNode) Union(node ...Node) *UnionNode
- func (a *AlertNode) VictorOps() *VictorOpsHandler
- func (n *AlertNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *AlertNode) Window() *WindowNode
- type AlertaHandler
- func (n AlertaHandler) Alert() *AlertNode
- func (n AlertaHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n AlertaHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n AlertaHandler) Count(field string) *InfluxQLNode
- func (n AlertaHandler) Default() *DefaultNode
- func (n AlertaHandler) Delete() *DeleteNode
- func (n AlertaHandler) Derivative(field string) *DerivativeNode
- func (n AlertaHandler) Difference(field string) *InfluxQLNode
- func (n AlertaHandler) Distinct(field string) *InfluxQLNode
- func (n AlertaHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n AlertaHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n AlertaHandler) First(field string) *InfluxQLNode
- func (n AlertaHandler) Flatten() *FlattenNode
- func (n AlertaHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n AlertaHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n AlertaHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n AlertaHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n AlertaHandler) InfluxDBOut() *InfluxDBOutNode
- func (n AlertaHandler) Join(others ...Node) *JoinNode
- func (n AlertaHandler) Last(field string) *InfluxQLNode
- func (n AlertaHandler) Max(field string) *InfluxQLNode
- func (n AlertaHandler) Mean(field string) *InfluxQLNode
- func (n AlertaHandler) Median(field string) *InfluxQLNode
- func (n AlertaHandler) Min(field string) *InfluxQLNode
- func (n AlertaHandler) Mode(field string) *InfluxQLNode
- func (n AlertaHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n AlertaHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n AlertaHandler) Sample(rate interface{}) *SampleNode
- func (a *AlertaHandler) Services(service ...string) *AlertaHandler
- func (n AlertaHandler) Shift(shift time.Duration) *ShiftNode
- func (n AlertaHandler) Spread(field string) *InfluxQLNode
- func (n AlertaHandler) Stddev(field string) *InfluxQLNode
- func (n AlertaHandler) Sum(field string) *InfluxQLNode
- func (n AlertaHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n AlertaHandler) Union(node ...Node) *UnionNode
- func (n AlertaHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n AlertaHandler) Window() *WindowNode
- type BatchNode
- func (n *BatchNode) Children() []Node
- func (n *BatchNode) Deadman(threshold float64, interval time.Duration, expr ...*ast.LambdaNode) *AlertNode
- func (n *BatchNode) Desc() string
- func (n *BatchNode) ID() ID
- func (n *BatchNode) Name() string
- func (n *BatchNode) Parents() []Node
- func (n *BatchNode) Provides() EdgeType
- func (b *BatchNode) Query(q string) *QueryNode
- func (n *BatchNode) SetName(name string)
- func (n *BatchNode) Stats(interval time.Duration) *StatsNode
- func (n *BatchNode) Wants() EdgeType
- type BooleanBulkPointAggregator
- type CombineNode
- func (n *CombineNode) Alert() *AlertNode
- func (n *CombineNode) As(names ...string) *CombineNode
- func (n *CombineNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *CombineNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *CombineNode) Count(field string) *InfluxQLNode
- func (n *CombineNode) Default() *DefaultNode
- func (n *CombineNode) Delete() *DeleteNode
- func (n *CombineNode) Derivative(field string) *DerivativeNode
- func (n *CombineNode) Difference(field string) *InfluxQLNode
- func (n *CombineNode) Distinct(field string) *InfluxQLNode
- func (n *CombineNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *CombineNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *CombineNode) First(field string) *InfluxQLNode
- func (n *CombineNode) Flatten() *FlattenNode
- func (n *CombineNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *CombineNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *CombineNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *CombineNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *CombineNode) InfluxDBOut() *InfluxDBOutNode
- func (n *CombineNode) Join(others ...Node) *JoinNode
- func (n *CombineNode) Last(field string) *InfluxQLNode
- func (n *CombineNode) Log() *LogNode
- func (n *CombineNode) Max(field string) *InfluxQLNode
- func (n *CombineNode) Mean(field string) *InfluxQLNode
- func (n *CombineNode) Median(field string) *InfluxQLNode
- func (n *CombineNode) Min(field string) *InfluxQLNode
- func (n *CombineNode) Mode(field string) *InfluxQLNode
- func (n *CombineNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *CombineNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *CombineNode) Sample(rate interface{}) *SampleNode
- func (n *CombineNode) Shift(shift time.Duration) *ShiftNode
- func (n *CombineNode) Spread(field string) *InfluxQLNode
- func (n *CombineNode) Stddev(field string) *InfluxQLNode
- func (n *CombineNode) Sum(field string) *InfluxQLNode
- func (n *CombineNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *CombineNode) Union(node ...Node) *UnionNode
- func (n *CombineNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *CombineNode) Window() *WindowNode
- type DeadmanService
- type DefaultNode
- func (n *DefaultNode) Alert() *AlertNode
- func (n *DefaultNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *DefaultNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *DefaultNode) Count(field string) *InfluxQLNode
- func (n *DefaultNode) Default() *DefaultNode
- func (n *DefaultNode) Delete() *DeleteNode
- func (n *DefaultNode) Derivative(field string) *DerivativeNode
- func (n *DefaultNode) Difference(field string) *InfluxQLNode
- func (n *DefaultNode) Distinct(field string) *InfluxQLNode
- func (n *DefaultNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *DefaultNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *DefaultNode) Field(name string, value interface{}) *DefaultNode
- func (n *DefaultNode) First(field string) *InfluxQLNode
- func (n *DefaultNode) Flatten() *FlattenNode
- func (n *DefaultNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *DefaultNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *DefaultNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *DefaultNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *DefaultNode) InfluxDBOut() *InfluxDBOutNode
- func (n *DefaultNode) Join(others ...Node) *JoinNode
- func (n *DefaultNode) Last(field string) *InfluxQLNode
- func (n *DefaultNode) Log() *LogNode
- func (n *DefaultNode) Max(field string) *InfluxQLNode
- func (n *DefaultNode) Mean(field string) *InfluxQLNode
- func (n *DefaultNode) Median(field string) *InfluxQLNode
- func (n *DefaultNode) Min(field string) *InfluxQLNode
- func (n *DefaultNode) Mode(field string) *InfluxQLNode
- func (n *DefaultNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *DefaultNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *DefaultNode) Sample(rate interface{}) *SampleNode
- func (n *DefaultNode) Shift(shift time.Duration) *ShiftNode
- func (n *DefaultNode) Spread(field string) *InfluxQLNode
- func (n *DefaultNode) Stddev(field string) *InfluxQLNode
- func (n *DefaultNode) Sum(field string) *InfluxQLNode
- func (n *DefaultNode) Tag(name string, value string) *DefaultNode
- func (n *DefaultNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *DefaultNode) Union(node ...Node) *UnionNode
- func (n *DefaultNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *DefaultNode) Window() *WindowNode
- type DeleteNode
- func (n *DeleteNode) Alert() *AlertNode
- func (n *DeleteNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *DeleteNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *DeleteNode) Count(field string) *InfluxQLNode
- func (n *DeleteNode) Default() *DefaultNode
- func (n *DeleteNode) Delete() *DeleteNode
- func (n *DeleteNode) Derivative(field string) *DerivativeNode
- func (n *DeleteNode) Difference(field string) *InfluxQLNode
- func (n *DeleteNode) Distinct(field string) *InfluxQLNode
- func (n *DeleteNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *DeleteNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *DeleteNode) Field(name string) *DeleteNode
- func (n *DeleteNode) First(field string) *InfluxQLNode
- func (n *DeleteNode) Flatten() *FlattenNode
- func (n *DeleteNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *DeleteNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *DeleteNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *DeleteNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *DeleteNode) InfluxDBOut() *InfluxDBOutNode
- func (n *DeleteNode) Join(others ...Node) *JoinNode
- func (n *DeleteNode) Last(field string) *InfluxQLNode
- func (n *DeleteNode) Log() *LogNode
- func (n *DeleteNode) Max(field string) *InfluxQLNode
- func (n *DeleteNode) Mean(field string) *InfluxQLNode
- func (n *DeleteNode) Median(field string) *InfluxQLNode
- func (n *DeleteNode) Min(field string) *InfluxQLNode
- func (n *DeleteNode) Mode(field string) *InfluxQLNode
- func (n *DeleteNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *DeleteNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *DeleteNode) Sample(rate interface{}) *SampleNode
- func (n *DeleteNode) Shift(shift time.Duration) *ShiftNode
- func (n *DeleteNode) Spread(field string) *InfluxQLNode
- func (n *DeleteNode) Stddev(field string) *InfluxQLNode
- func (n *DeleteNode) Sum(field string) *InfluxQLNode
- func (n *DeleteNode) Tag(name string) *DeleteNode
- func (n *DeleteNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *DeleteNode) Union(node ...Node) *UnionNode
- func (n *DeleteNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *DeleteNode) Window() *WindowNode
- type DerivativeNode
- func (n *DerivativeNode) Alert() *AlertNode
- func (n *DerivativeNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *DerivativeNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *DerivativeNode) Count(field string) *InfluxQLNode
- func (n *DerivativeNode) Default() *DefaultNode
- func (n *DerivativeNode) Delete() *DeleteNode
- func (n *DerivativeNode) Derivative(field string) *DerivativeNode
- func (n *DerivativeNode) Difference(field string) *InfluxQLNode
- func (n *DerivativeNode) Distinct(field string) *InfluxQLNode
- func (n *DerivativeNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *DerivativeNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *DerivativeNode) First(field string) *InfluxQLNode
- func (n *DerivativeNode) Flatten() *FlattenNode
- func (n *DerivativeNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *DerivativeNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *DerivativeNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *DerivativeNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *DerivativeNode) InfluxDBOut() *InfluxDBOutNode
- func (n *DerivativeNode) Join(others ...Node) *JoinNode
- func (n *DerivativeNode) Last(field string) *InfluxQLNode
- func (n *DerivativeNode) Log() *LogNode
- func (n *DerivativeNode) Max(field string) *InfluxQLNode
- func (n *DerivativeNode) Mean(field string) *InfluxQLNode
- func (n *DerivativeNode) Median(field string) *InfluxQLNode
- func (n *DerivativeNode) Min(field string) *InfluxQLNode
- func (n *DerivativeNode) Mode(field string) *InfluxQLNode
- func (n *DerivativeNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (d *DerivativeNode) NonNegative() *DerivativeNode
- func (n *DerivativeNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *DerivativeNode) Sample(rate interface{}) *SampleNode
- func (n *DerivativeNode) Shift(shift time.Duration) *ShiftNode
- func (n *DerivativeNode) Spread(field string) *InfluxQLNode
- func (n *DerivativeNode) Stddev(field string) *InfluxQLNode
- func (n *DerivativeNode) Sum(field string) *InfluxQLNode
- func (n *DerivativeNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *DerivativeNode) Union(node ...Node) *UnionNode
- func (n *DerivativeNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *DerivativeNode) Window() *WindowNode
- type EdgeType
- type EmailHandler
- func (n EmailHandler) Alert() *AlertNode
- func (n EmailHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n EmailHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n EmailHandler) Count(field string) *InfluxQLNode
- func (n EmailHandler) Default() *DefaultNode
- func (n EmailHandler) Delete() *DeleteNode
- func (n EmailHandler) Derivative(field string) *DerivativeNode
- func (n EmailHandler) Difference(field string) *InfluxQLNode
- func (n EmailHandler) Distinct(field string) *InfluxQLNode
- func (n EmailHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n EmailHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n EmailHandler) First(field string) *InfluxQLNode
- func (n EmailHandler) Flatten() *FlattenNode
- func (n EmailHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n EmailHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n EmailHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n EmailHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n EmailHandler) InfluxDBOut() *InfluxDBOutNode
- func (n EmailHandler) Join(others ...Node) *JoinNode
- func (n EmailHandler) Last(field string) *InfluxQLNode
- func (n EmailHandler) Max(field string) *InfluxQLNode
- func (n EmailHandler) Mean(field string) *InfluxQLNode
- func (n EmailHandler) Median(field string) *InfluxQLNode
- func (n EmailHandler) Min(field string) *InfluxQLNode
- func (n EmailHandler) Mode(field string) *InfluxQLNode
- func (n EmailHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n EmailHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n EmailHandler) Sample(rate interface{}) *SampleNode
- func (n EmailHandler) Shift(shift time.Duration) *ShiftNode
- func (n EmailHandler) Spread(field string) *InfluxQLNode
- func (n EmailHandler) Stddev(field string) *InfluxQLNode
- func (n EmailHandler) Sum(field string) *InfluxQLNode
- func (h *EmailHandler) To(to ...string) *EmailHandler
- func (n EmailHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n EmailHandler) Union(node ...Node) *UnionNode
- func (n EmailHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n EmailHandler) Window() *WindowNode
- type EvalNode
- func (n *EvalNode) Alert() *AlertNode
- func (e *EvalNode) As(names ...string) *EvalNode
- func (n *EvalNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *EvalNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *EvalNode) Count(field string) *InfluxQLNode
- func (n *EvalNode) Default() *DefaultNode
- func (n *EvalNode) Delete() *DeleteNode
- func (n *EvalNode) Derivative(field string) *DerivativeNode
- func (n *EvalNode) Difference(field string) *InfluxQLNode
- func (n *EvalNode) Distinct(field string) *InfluxQLNode
- func (n *EvalNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *EvalNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *EvalNode) First(field string) *InfluxQLNode
- func (n *EvalNode) Flatten() *FlattenNode
- func (n *EvalNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *EvalNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *EvalNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *EvalNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *EvalNode) InfluxDBOut() *InfluxDBOutNode
- func (n *EvalNode) Join(others ...Node) *JoinNode
- func (e *EvalNode) Keep(fields ...string) *EvalNode
- func (n *EvalNode) Last(field string) *InfluxQLNode
- func (n *EvalNode) Log() *LogNode
- func (n *EvalNode) Max(field string) *InfluxQLNode
- func (n *EvalNode) Mean(field string) *InfluxQLNode
- func (n *EvalNode) Median(field string) *InfluxQLNode
- func (n *EvalNode) Min(field string) *InfluxQLNode
- func (n *EvalNode) Mode(field string) *InfluxQLNode
- func (n *EvalNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *EvalNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (e *EvalNode) Quiet() *EvalNode
- func (n *EvalNode) Sample(rate interface{}) *SampleNode
- func (n *EvalNode) Shift(shift time.Duration) *ShiftNode
- func (n *EvalNode) Spread(field string) *InfluxQLNode
- func (n *EvalNode) Stddev(field string) *InfluxQLNode
- func (n *EvalNode) Sum(field string) *InfluxQLNode
- func (e *EvalNode) Tags(names ...string) *EvalNode
- func (n *EvalNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *EvalNode) Union(node ...Node) *UnionNode
- func (n *EvalNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *EvalNode) Window() *WindowNode
- type ExecHandler
- func (n ExecHandler) Alert() *AlertNode
- func (n ExecHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n ExecHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n ExecHandler) Count(field string) *InfluxQLNode
- func (n ExecHandler) Default() *DefaultNode
- func (n ExecHandler) Delete() *DeleteNode
- func (n ExecHandler) Derivative(field string) *DerivativeNode
- func (n ExecHandler) Difference(field string) *InfluxQLNode
- func (n ExecHandler) Distinct(field string) *InfluxQLNode
- func (n ExecHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n ExecHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n ExecHandler) First(field string) *InfluxQLNode
- func (n ExecHandler) Flatten() *FlattenNode
- func (n ExecHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n ExecHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n ExecHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n ExecHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n ExecHandler) InfluxDBOut() *InfluxDBOutNode
- func (n ExecHandler) Join(others ...Node) *JoinNode
- func (n ExecHandler) Last(field string) *InfluxQLNode
- func (n ExecHandler) Max(field string) *InfluxQLNode
- func (n ExecHandler) Mean(field string) *InfluxQLNode
- func (n ExecHandler) Median(field string) *InfluxQLNode
- func (n ExecHandler) Min(field string) *InfluxQLNode
- func (n ExecHandler) Mode(field string) *InfluxQLNode
- func (n ExecHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n ExecHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n ExecHandler) Sample(rate interface{}) *SampleNode
- func (n ExecHandler) Shift(shift time.Duration) *ShiftNode
- func (n ExecHandler) Spread(field string) *InfluxQLNode
- func (n ExecHandler) Stddev(field string) *InfluxQLNode
- func (n ExecHandler) Sum(field string) *InfluxQLNode
- func (n ExecHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n ExecHandler) Union(node ...Node) *UnionNode
- func (n ExecHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n ExecHandler) Window() *WindowNode
- type FlattenNode
- func (n *FlattenNode) Alert() *AlertNode
- func (n *FlattenNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *FlattenNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *FlattenNode) Count(field string) *InfluxQLNode
- func (n *FlattenNode) Default() *DefaultNode
- func (n *FlattenNode) Delete() *DeleteNode
- func (n *FlattenNode) Derivative(field string) *DerivativeNode
- func (n *FlattenNode) Difference(field string) *InfluxQLNode
- func (n *FlattenNode) Distinct(field string) *InfluxQLNode
- func (n *FlattenNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *FlattenNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *FlattenNode) First(field string) *InfluxQLNode
- func (n *FlattenNode) Flatten() *FlattenNode
- func (n *FlattenNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *FlattenNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *FlattenNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *FlattenNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *FlattenNode) InfluxDBOut() *InfluxDBOutNode
- func (n *FlattenNode) Join(others ...Node) *JoinNode
- func (n *FlattenNode) Last(field string) *InfluxQLNode
- func (n *FlattenNode) Log() *LogNode
- func (n *FlattenNode) Max(field string) *InfluxQLNode
- func (n *FlattenNode) Mean(field string) *InfluxQLNode
- func (n *FlattenNode) Median(field string) *InfluxQLNode
- func (n *FlattenNode) Min(field string) *InfluxQLNode
- func (n *FlattenNode) Mode(field string) *InfluxQLNode
- func (n *FlattenNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (f *FlattenNode) On(dims ...string) *FlattenNode
- func (n *FlattenNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *FlattenNode) Sample(rate interface{}) *SampleNode
- func (n *FlattenNode) Shift(shift time.Duration) *ShiftNode
- func (n *FlattenNode) Spread(field string) *InfluxQLNode
- func (n *FlattenNode) Stddev(field string) *InfluxQLNode
- func (n *FlattenNode) Sum(field string) *InfluxQLNode
- func (n *FlattenNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *FlattenNode) Union(node ...Node) *UnionNode
- func (n *FlattenNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *FlattenNode) Window() *WindowNode
- type FloatBulkPointAggregator
- type FromNode
- func (n *FromNode) Alert() *AlertNode
- func (n *FromNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *FromNode) ChainMethods() map[string]reflect.Value
- func (n *FromNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *FromNode) Count(field string) *InfluxQLNode
- func (n *FromNode) Default() *DefaultNode
- func (n *FromNode) Delete() *DeleteNode
- func (n *FromNode) Derivative(field string) *DerivativeNode
- func (n *FromNode) Difference(field string) *InfluxQLNode
- func (n *FromNode) Distinct(field string) *InfluxQLNode
- func (n *FromNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *FromNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *FromNode) First(field string) *InfluxQLNode
- func (n *FromNode) Flatten() *FlattenNode
- func (s *FromNode) From() *FromNode
- func (s *FromNode) GroupBy(tag ...interface{}) *FromNode
- func (n *FromNode) GroupByMeasurement() *FromNode
- func (n *FromNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *FromNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *FromNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *FromNode) InfluxDBOut() *InfluxDBOutNode
- func (n *FromNode) Join(others ...Node) *JoinNode
- func (n *FromNode) Last(field string) *InfluxQLNode
- func (n *FromNode) Log() *LogNode
- func (n *FromNode) Max(field string) *InfluxQLNode
- func (n *FromNode) Mean(field string) *InfluxQLNode
- func (n *FromNode) Median(field string) *InfluxQLNode
- func (n *FromNode) Min(field string) *InfluxQLNode
- func (n *FromNode) Mode(field string) *InfluxQLNode
- func (n *FromNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *FromNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *FromNode) Sample(rate interface{}) *SampleNode
- func (n *FromNode) Shift(shift time.Duration) *ShiftNode
- func (n *FromNode) Spread(field string) *InfluxQLNode
- func (n *FromNode) Stddev(field string) *InfluxQLNode
- func (n *FromNode) Sum(field string) *InfluxQLNode
- func (n *FromNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *FromNode) Union(node ...Node) *UnionNode
- func (s *FromNode) Where(lambda *ast.LambdaNode) *FromNode
- func (n *FromNode) Window() *WindowNode
- type GroupByNode
- func (n *GroupByNode) Alert() *AlertNode
- func (n *GroupByNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *GroupByNode) ByMeasurement() *GroupByNode
- func (n *GroupByNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *GroupByNode) Count(field string) *InfluxQLNode
- func (n *GroupByNode) Default() *DefaultNode
- func (n *GroupByNode) Delete() *DeleteNode
- func (n *GroupByNode) Derivative(field string) *DerivativeNode
- func (n *GroupByNode) Difference(field string) *InfluxQLNode
- func (n *GroupByNode) Distinct(field string) *InfluxQLNode
- func (n *GroupByNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *GroupByNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *GroupByNode) First(field string) *InfluxQLNode
- func (n *GroupByNode) Flatten() *FlattenNode
- func (n *GroupByNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *GroupByNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *GroupByNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *GroupByNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *GroupByNode) InfluxDBOut() *InfluxDBOutNode
- func (n *GroupByNode) Join(others ...Node) *JoinNode
- func (n *GroupByNode) Last(field string) *InfluxQLNode
- func (n *GroupByNode) Log() *LogNode
- func (n *GroupByNode) Max(field string) *InfluxQLNode
- func (n *GroupByNode) Mean(field string) *InfluxQLNode
- func (n *GroupByNode) Median(field string) *InfluxQLNode
- func (n *GroupByNode) Min(field string) *InfluxQLNode
- func (n *GroupByNode) Mode(field string) *InfluxQLNode
- func (n *GroupByNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *GroupByNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *GroupByNode) Sample(rate interface{}) *SampleNode
- func (n *GroupByNode) Shift(shift time.Duration) *ShiftNode
- func (n *GroupByNode) Spread(field string) *InfluxQLNode
- func (n *GroupByNode) Stddev(field string) *InfluxQLNode
- func (n *GroupByNode) Sum(field string) *InfluxQLNode
- func (n *GroupByNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *GroupByNode) Union(node ...Node) *UnionNode
- func (n *GroupByNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *GroupByNode) Window() *WindowNode
- type HTTPOutNode
- func (n *HTTPOutNode) Alert() *AlertNode
- func (n *HTTPOutNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *HTTPOutNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *HTTPOutNode) Count(field string) *InfluxQLNode
- func (n *HTTPOutNode) Default() *DefaultNode
- func (n *HTTPOutNode) Delete() *DeleteNode
- func (n *HTTPOutNode) Derivative(field string) *DerivativeNode
- func (n *HTTPOutNode) Difference(field string) *InfluxQLNode
- func (n *HTTPOutNode) Distinct(field string) *InfluxQLNode
- func (n *HTTPOutNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *HTTPOutNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *HTTPOutNode) First(field string) *InfluxQLNode
- func (n *HTTPOutNode) Flatten() *FlattenNode
- func (n *HTTPOutNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *HTTPOutNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *HTTPOutNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *HTTPOutNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *HTTPOutNode) InfluxDBOut() *InfluxDBOutNode
- func (n *HTTPOutNode) Join(others ...Node) *JoinNode
- func (n *HTTPOutNode) Last(field string) *InfluxQLNode
- func (n *HTTPOutNode) Log() *LogNode
- func (n *HTTPOutNode) Max(field string) *InfluxQLNode
- func (n *HTTPOutNode) Mean(field string) *InfluxQLNode
- func (n *HTTPOutNode) Median(field string) *InfluxQLNode
- func (n *HTTPOutNode) Min(field string) *InfluxQLNode
- func (n *HTTPOutNode) Mode(field string) *InfluxQLNode
- func (n *HTTPOutNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *HTTPOutNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *HTTPOutNode) Sample(rate interface{}) *SampleNode
- func (n *HTTPOutNode) Shift(shift time.Duration) *ShiftNode
- func (n *HTTPOutNode) Spread(field string) *InfluxQLNode
- func (n *HTTPOutNode) Stddev(field string) *InfluxQLNode
- func (n *HTTPOutNode) Sum(field string) *InfluxQLNode
- func (n *HTTPOutNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *HTTPOutNode) Union(node ...Node) *UnionNode
- func (n *HTTPOutNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *HTTPOutNode) Window() *WindowNode
- type HipChatHandler
- func (n HipChatHandler) Alert() *AlertNode
- func (n HipChatHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n HipChatHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n HipChatHandler) Count(field string) *InfluxQLNode
- func (n HipChatHandler) Default() *DefaultNode
- func (n HipChatHandler) Delete() *DeleteNode
- func (n HipChatHandler) Derivative(field string) *DerivativeNode
- func (n HipChatHandler) Difference(field string) *InfluxQLNode
- func (n HipChatHandler) Distinct(field string) *InfluxQLNode
- func (n HipChatHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n HipChatHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n HipChatHandler) First(field string) *InfluxQLNode
- func (n HipChatHandler) Flatten() *FlattenNode
- func (n HipChatHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n HipChatHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n HipChatHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n HipChatHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n HipChatHandler) InfluxDBOut() *InfluxDBOutNode
- func (n HipChatHandler) Join(others ...Node) *JoinNode
- func (n HipChatHandler) Last(field string) *InfluxQLNode
- func (n HipChatHandler) Max(field string) *InfluxQLNode
- func (n HipChatHandler) Mean(field string) *InfluxQLNode
- func (n HipChatHandler) Median(field string) *InfluxQLNode
- func (n HipChatHandler) Min(field string) *InfluxQLNode
- func (n HipChatHandler) Mode(field string) *InfluxQLNode
- func (n HipChatHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n HipChatHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n HipChatHandler) Sample(rate interface{}) *SampleNode
- func (n HipChatHandler) Shift(shift time.Duration) *ShiftNode
- func (n HipChatHandler) Spread(field string) *InfluxQLNode
- func (n HipChatHandler) Stddev(field string) *InfluxQLNode
- func (n HipChatHandler) Sum(field string) *InfluxQLNode
- func (n HipChatHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n HipChatHandler) Union(node ...Node) *UnionNode
- func (n HipChatHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n HipChatHandler) Window() *WindowNode
- type ID
- type InfluxDBOutNode
- func (n *InfluxDBOutNode) Children() []Node
- func (n *InfluxDBOutNode) Deadman(threshold float64, interval time.Duration, expr ...*ast.LambdaNode) *AlertNode
- func (n *InfluxDBOutNode) Desc() string
- func (n *InfluxDBOutNode) ID() ID
- func (n *InfluxDBOutNode) Name() string
- func (n *InfluxDBOutNode) Parents() []Node
- func (n *InfluxDBOutNode) Provides() EdgeType
- func (n *InfluxDBOutNode) SetName(name string)
- func (n *InfluxDBOutNode) Stats(interval time.Duration) *StatsNode
- func (i *InfluxDBOutNode) Tag(key, value string) *InfluxDBOutNode
- func (n *InfluxDBOutNode) Wants() EdgeType
- type InfluxQLNode
- func (n *InfluxQLNode) Alert() *AlertNode
- func (n *InfluxQLNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *InfluxQLNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *InfluxQLNode) Count(field string) *InfluxQLNode
- func (n *InfluxQLNode) Default() *DefaultNode
- func (n *InfluxQLNode) Delete() *DeleteNode
- func (n *InfluxQLNode) Derivative(field string) *DerivativeNode
- func (n *InfluxQLNode) Difference(field string) *InfluxQLNode
- func (n *InfluxQLNode) Distinct(field string) *InfluxQLNode
- func (n *InfluxQLNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *InfluxQLNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *InfluxQLNode) First(field string) *InfluxQLNode
- func (n *InfluxQLNode) Flatten() *FlattenNode
- func (n *InfluxQLNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *InfluxQLNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *InfluxQLNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *InfluxQLNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *InfluxQLNode) InfluxDBOut() *InfluxDBOutNode
- func (n *InfluxQLNode) Join(others ...Node) *JoinNode
- func (n *InfluxQLNode) Last(field string) *InfluxQLNode
- func (n *InfluxQLNode) Log() *LogNode
- func (n *InfluxQLNode) Max(field string) *InfluxQLNode
- func (n *InfluxQLNode) Mean(field string) *InfluxQLNode
- func (n *InfluxQLNode) Median(field string) *InfluxQLNode
- func (n *InfluxQLNode) Min(field string) *InfluxQLNode
- func (n *InfluxQLNode) Mode(field string) *InfluxQLNode
- func (n *InfluxQLNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *InfluxQLNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *InfluxQLNode) Sample(rate interface{}) *SampleNode
- func (n *InfluxQLNode) Shift(shift time.Duration) *ShiftNode
- func (n *InfluxQLNode) Spread(field string) *InfluxQLNode
- func (n *InfluxQLNode) Stddev(field string) *InfluxQLNode
- func (n *InfluxQLNode) Sum(field string) *InfluxQLNode
- func (n *InfluxQLNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *InfluxQLNode) Union(node ...Node) *UnionNode
- func (n *InfluxQLNode) UsePointTimes() *InfluxQLNode
- func (n *InfluxQLNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *InfluxQLNode) Window() *WindowNode
- type IntegerBulkPointAggregator
- type JoinNode
- func (n *JoinNode) Alert() *AlertNode
- func (j *JoinNode) As(names ...string) *JoinNode
- func (n *JoinNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *JoinNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *JoinNode) Count(field string) *InfluxQLNode
- func (n *JoinNode) Default() *DefaultNode
- func (n *JoinNode) Delete() *DeleteNode
- func (n *JoinNode) Derivative(field string) *DerivativeNode
- func (n *JoinNode) Difference(field string) *InfluxQLNode
- func (n *JoinNode) Distinct(field string) *InfluxQLNode
- func (n *JoinNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *JoinNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *JoinNode) First(field string) *InfluxQLNode
- func (n *JoinNode) Flatten() *FlattenNode
- func (n *JoinNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *JoinNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *JoinNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *JoinNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *JoinNode) InfluxDBOut() *InfluxDBOutNode
- func (n *JoinNode) Join(others ...Node) *JoinNode
- func (n *JoinNode) Last(field string) *InfluxQLNode
- func (n *JoinNode) Log() *LogNode
- func (n *JoinNode) Max(field string) *InfluxQLNode
- func (n *JoinNode) Mean(field string) *InfluxQLNode
- func (n *JoinNode) Median(field string) *InfluxQLNode
- func (n *JoinNode) Min(field string) *InfluxQLNode
- func (n *JoinNode) Mode(field string) *InfluxQLNode
- func (n *JoinNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (j *JoinNode) On(dims ...string) *JoinNode
- func (n *JoinNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *JoinNode) Sample(rate interface{}) *SampleNode
- func (n *JoinNode) Shift(shift time.Duration) *ShiftNode
- func (n *JoinNode) Spread(field string) *InfluxQLNode
- func (n *JoinNode) Stddev(field string) *InfluxQLNode
- func (n *JoinNode) Sum(field string) *InfluxQLNode
- func (n *JoinNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *JoinNode) Union(node ...Node) *UnionNode
- func (n *JoinNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *JoinNode) Window() *WindowNode
- type LogHandler
- func (n LogHandler) Alert() *AlertNode
- func (n LogHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n LogHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n LogHandler) Count(field string) *InfluxQLNode
- func (n LogHandler) Default() *DefaultNode
- func (n LogHandler) Delete() *DeleteNode
- func (n LogHandler) Derivative(field string) *DerivativeNode
- func (n LogHandler) Difference(field string) *InfluxQLNode
- func (n LogHandler) Distinct(field string) *InfluxQLNode
- func (n LogHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n LogHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n LogHandler) First(field string) *InfluxQLNode
- func (n LogHandler) Flatten() *FlattenNode
- func (n LogHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n LogHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n LogHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n LogHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n LogHandler) InfluxDBOut() *InfluxDBOutNode
- func (n LogHandler) Join(others ...Node) *JoinNode
- func (n LogHandler) Last(field string) *InfluxQLNode
- func (n LogHandler) Max(field string) *InfluxQLNode
- func (n LogHandler) Mean(field string) *InfluxQLNode
- func (n LogHandler) Median(field string) *InfluxQLNode
- func (n LogHandler) Min(field string) *InfluxQLNode
- func (n LogHandler) Mode(field string) *InfluxQLNode
- func (n LogHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n LogHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n LogHandler) Sample(rate interface{}) *SampleNode
- func (n LogHandler) Shift(shift time.Duration) *ShiftNode
- func (n LogHandler) Spread(field string) *InfluxQLNode
- func (n LogHandler) Stddev(field string) *InfluxQLNode
- func (n LogHandler) Sum(field string) *InfluxQLNode
- func (n LogHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n LogHandler) Union(node ...Node) *UnionNode
- func (n LogHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n LogHandler) Window() *WindowNode
- type LogNode
- func (n *LogNode) Alert() *AlertNode
- func (n *LogNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *LogNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *LogNode) Count(field string) *InfluxQLNode
- func (n *LogNode) Default() *DefaultNode
- func (n *LogNode) Delete() *DeleteNode
- func (n *LogNode) Derivative(field string) *DerivativeNode
- func (n *LogNode) Difference(field string) *InfluxQLNode
- func (n *LogNode) Distinct(field string) *InfluxQLNode
- func (n *LogNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *LogNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *LogNode) First(field string) *InfluxQLNode
- func (n *LogNode) Flatten() *FlattenNode
- func (n *LogNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *LogNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *LogNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *LogNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *LogNode) InfluxDBOut() *InfluxDBOutNode
- func (n *LogNode) Join(others ...Node) *JoinNode
- func (n *LogNode) Last(field string) *InfluxQLNode
- func (n *LogNode) Log() *LogNode
- func (n *LogNode) Max(field string) *InfluxQLNode
- func (n *LogNode) Mean(field string) *InfluxQLNode
- func (n *LogNode) Median(field string) *InfluxQLNode
- func (n *LogNode) Min(field string) *InfluxQLNode
- func (n *LogNode) Mode(field string) *InfluxQLNode
- func (n *LogNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *LogNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *LogNode) Sample(rate interface{}) *SampleNode
- func (n *LogNode) Shift(shift time.Duration) *ShiftNode
- func (n *LogNode) Spread(field string) *InfluxQLNode
- func (n *LogNode) Stddev(field string) *InfluxQLNode
- func (n *LogNode) Sum(field string) *InfluxQLNode
- func (n *LogNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *LogNode) Union(node ...Node) *UnionNode
- func (n *LogNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *LogNode) Window() *WindowNode
- type NoOpNode
- func (n *NoOpNode) Alert() *AlertNode
- func (n *NoOpNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *NoOpNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *NoOpNode) Count(field string) *InfluxQLNode
- func (n *NoOpNode) Default() *DefaultNode
- func (n *NoOpNode) Delete() *DeleteNode
- func (n *NoOpNode) Derivative(field string) *DerivativeNode
- func (n *NoOpNode) Difference(field string) *InfluxQLNode
- func (n *NoOpNode) Distinct(field string) *InfluxQLNode
- func (n *NoOpNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *NoOpNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *NoOpNode) First(field string) *InfluxQLNode
- func (n *NoOpNode) Flatten() *FlattenNode
- func (n *NoOpNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *NoOpNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *NoOpNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *NoOpNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *NoOpNode) InfluxDBOut() *InfluxDBOutNode
- func (n *NoOpNode) Join(others ...Node) *JoinNode
- func (n *NoOpNode) Last(field string) *InfluxQLNode
- func (n *NoOpNode) Log() *LogNode
- func (n *NoOpNode) Max(field string) *InfluxQLNode
- func (n *NoOpNode) Mean(field string) *InfluxQLNode
- func (n *NoOpNode) Median(field string) *InfluxQLNode
- func (n *NoOpNode) Min(field string) *InfluxQLNode
- func (n *NoOpNode) Mode(field string) *InfluxQLNode
- func (n *NoOpNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *NoOpNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *NoOpNode) Sample(rate interface{}) *SampleNode
- func (n *NoOpNode) Shift(shift time.Duration) *ShiftNode
- func (n *NoOpNode) Spread(field string) *InfluxQLNode
- func (n *NoOpNode) Stddev(field string) *InfluxQLNode
- func (n *NoOpNode) Sum(field string) *InfluxQLNode
- func (n *NoOpNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *NoOpNode) Union(node ...Node) *UnionNode
- func (n *NoOpNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *NoOpNode) Window() *WindowNode
- type Node
- type OpsGenieHandler
- func (n OpsGenieHandler) Alert() *AlertNode
- func (n OpsGenieHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n OpsGenieHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n OpsGenieHandler) Count(field string) *InfluxQLNode
- func (n OpsGenieHandler) Default() *DefaultNode
- func (n OpsGenieHandler) Delete() *DeleteNode
- func (n OpsGenieHandler) Derivative(field string) *DerivativeNode
- func (n OpsGenieHandler) Difference(field string) *InfluxQLNode
- func (n OpsGenieHandler) Distinct(field string) *InfluxQLNode
- func (n OpsGenieHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n OpsGenieHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n OpsGenieHandler) First(field string) *InfluxQLNode
- func (n OpsGenieHandler) Flatten() *FlattenNode
- func (n OpsGenieHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n OpsGenieHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n OpsGenieHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n OpsGenieHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n OpsGenieHandler) InfluxDBOut() *InfluxDBOutNode
- func (n OpsGenieHandler) Join(others ...Node) *JoinNode
- func (n OpsGenieHandler) Last(field string) *InfluxQLNode
- func (n OpsGenieHandler) Max(field string) *InfluxQLNode
- func (n OpsGenieHandler) Mean(field string) *InfluxQLNode
- func (n OpsGenieHandler) Median(field string) *InfluxQLNode
- func (n OpsGenieHandler) Min(field string) *InfluxQLNode
- func (n OpsGenieHandler) Mode(field string) *InfluxQLNode
- func (n OpsGenieHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n OpsGenieHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (og *OpsGenieHandler) Recipients(recipients ...string) *OpsGenieHandler
- func (n OpsGenieHandler) Sample(rate interface{}) *SampleNode
- func (n OpsGenieHandler) Shift(shift time.Duration) *ShiftNode
- func (n OpsGenieHandler) Spread(field string) *InfluxQLNode
- func (n OpsGenieHandler) Stddev(field string) *InfluxQLNode
- func (n OpsGenieHandler) Sum(field string) *InfluxQLNode
- func (og *OpsGenieHandler) Teams(teams ...string) *OpsGenieHandler
- func (n OpsGenieHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n OpsGenieHandler) Union(node ...Node) *UnionNode
- func (n OpsGenieHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n OpsGenieHandler) Window() *WindowNode
- type PagerDutyHandler
- func (n PagerDutyHandler) Alert() *AlertNode
- func (n PagerDutyHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n PagerDutyHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n PagerDutyHandler) Count(field string) *InfluxQLNode
- func (n PagerDutyHandler) Default() *DefaultNode
- func (n PagerDutyHandler) Delete() *DeleteNode
- func (n PagerDutyHandler) Derivative(field string) *DerivativeNode
- func (n PagerDutyHandler) Difference(field string) *InfluxQLNode
- func (n PagerDutyHandler) Distinct(field string) *InfluxQLNode
- func (n PagerDutyHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n PagerDutyHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n PagerDutyHandler) First(field string) *InfluxQLNode
- func (n PagerDutyHandler) Flatten() *FlattenNode
- func (n PagerDutyHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n PagerDutyHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n PagerDutyHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n PagerDutyHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n PagerDutyHandler) InfluxDBOut() *InfluxDBOutNode
- func (n PagerDutyHandler) Join(others ...Node) *JoinNode
- func (n PagerDutyHandler) Last(field string) *InfluxQLNode
- func (n PagerDutyHandler) Max(field string) *InfluxQLNode
- func (n PagerDutyHandler) Mean(field string) *InfluxQLNode
- func (n PagerDutyHandler) Median(field string) *InfluxQLNode
- func (n PagerDutyHandler) Min(field string) *InfluxQLNode
- func (n PagerDutyHandler) Mode(field string) *InfluxQLNode
- func (n PagerDutyHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n PagerDutyHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n PagerDutyHandler) Sample(rate interface{}) *SampleNode
- func (n PagerDutyHandler) Shift(shift time.Duration) *ShiftNode
- func (n PagerDutyHandler) Spread(field string) *InfluxQLNode
- func (n PagerDutyHandler) Stddev(field string) *InfluxQLNode
- func (n PagerDutyHandler) Sum(field string) *InfluxQLNode
- func (n PagerDutyHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n PagerDutyHandler) Union(node ...Node) *UnionNode
- func (n PagerDutyHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n PagerDutyHandler) Window() *WindowNode
- type Pipeline
- type PostHandler
- func (n PostHandler) Alert() *AlertNode
- func (n PostHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n PostHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n PostHandler) Count(field string) *InfluxQLNode
- func (n PostHandler) Default() *DefaultNode
- func (n PostHandler) Delete() *DeleteNode
- func (n PostHandler) Derivative(field string) *DerivativeNode
- func (n PostHandler) Difference(field string) *InfluxQLNode
- func (n PostHandler) Distinct(field string) *InfluxQLNode
- func (n PostHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n PostHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n PostHandler) First(field string) *InfluxQLNode
- func (n PostHandler) Flatten() *FlattenNode
- func (n PostHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n PostHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n PostHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n PostHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n PostHandler) InfluxDBOut() *InfluxDBOutNode
- func (n PostHandler) Join(others ...Node) *JoinNode
- func (n PostHandler) Last(field string) *InfluxQLNode
- func (n PostHandler) Max(field string) *InfluxQLNode
- func (n PostHandler) Mean(field string) *InfluxQLNode
- func (n PostHandler) Median(field string) *InfluxQLNode
- func (n PostHandler) Min(field string) *InfluxQLNode
- func (n PostHandler) Mode(field string) *InfluxQLNode
- func (n PostHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n PostHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n PostHandler) Sample(rate interface{}) *SampleNode
- func (n PostHandler) Shift(shift time.Duration) *ShiftNode
- func (n PostHandler) Spread(field string) *InfluxQLNode
- func (n PostHandler) Stddev(field string) *InfluxQLNode
- func (n PostHandler) Sum(field string) *InfluxQLNode
- func (n PostHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n PostHandler) Union(node ...Node) *UnionNode
- func (n PostHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n PostHandler) Window() *WindowNode
- type QueryNode
- func (n *QueryNode) Alert() *AlertNode
- func (b *QueryNode) Align() *QueryNode
- func (n *QueryNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *QueryNode) ChainMethods() map[string]reflect.Value
- func (n *QueryNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *QueryNode) Count(field string) *InfluxQLNode
- func (n *QueryNode) Default() *DefaultNode
- func (n *QueryNode) Delete() *DeleteNode
- func (n *QueryNode) Derivative(field string) *DerivativeNode
- func (n *QueryNode) Difference(field string) *InfluxQLNode
- func (n *QueryNode) Distinct(field string) *InfluxQLNode
- func (n *QueryNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *QueryNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *QueryNode) First(field string) *InfluxQLNode
- func (n *QueryNode) Flatten() *FlattenNode
- func (b *QueryNode) GroupBy(d ...interface{}) *QueryNode
- func (n *QueryNode) GroupByMeasurement() *QueryNode
- func (n *QueryNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *QueryNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *QueryNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *QueryNode) InfluxDBOut() *InfluxDBOutNode
- func (n *QueryNode) Join(others ...Node) *JoinNode
- func (n *QueryNode) Last(field string) *InfluxQLNode
- func (n *QueryNode) Log() *LogNode
- func (n *QueryNode) Max(field string) *InfluxQLNode
- func (n *QueryNode) Mean(field string) *InfluxQLNode
- func (n *QueryNode) Median(field string) *InfluxQLNode
- func (n *QueryNode) Min(field string) *InfluxQLNode
- func (n *QueryNode) Mode(field string) *InfluxQLNode
- func (n *QueryNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *QueryNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *QueryNode) Sample(rate interface{}) *SampleNode
- func (n *QueryNode) Shift(shift time.Duration) *ShiftNode
- func (n *QueryNode) Spread(field string) *InfluxQLNode
- func (n *QueryNode) Stddev(field string) *InfluxQLNode
- func (n *QueryNode) Sum(field string) *InfluxQLNode
- func (n *QueryNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *QueryNode) Union(node ...Node) *UnionNode
- func (n *QueryNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *QueryNode) Window() *WindowNode
- type ReduceCreater
- type SampleNode
- func (n *SampleNode) Alert() *AlertNode
- func (n *SampleNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *SampleNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *SampleNode) Count(field string) *InfluxQLNode
- func (n *SampleNode) Default() *DefaultNode
- func (n *SampleNode) Delete() *DeleteNode
- func (n *SampleNode) Derivative(field string) *DerivativeNode
- func (n *SampleNode) Difference(field string) *InfluxQLNode
- func (n *SampleNode) Distinct(field string) *InfluxQLNode
- func (n *SampleNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *SampleNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *SampleNode) First(field string) *InfluxQLNode
- func (n *SampleNode) Flatten() *FlattenNode
- func (n *SampleNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *SampleNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *SampleNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *SampleNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *SampleNode) InfluxDBOut() *InfluxDBOutNode
- func (n *SampleNode) Join(others ...Node) *JoinNode
- func (n *SampleNode) Last(field string) *InfluxQLNode
- func (n *SampleNode) Log() *LogNode
- func (n *SampleNode) Max(field string) *InfluxQLNode
- func (n *SampleNode) Mean(field string) *InfluxQLNode
- func (n *SampleNode) Median(field string) *InfluxQLNode
- func (n *SampleNode) Min(field string) *InfluxQLNode
- func (n *SampleNode) Mode(field string) *InfluxQLNode
- func (n *SampleNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *SampleNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *SampleNode) Sample(rate interface{}) *SampleNode
- func (n *SampleNode) Shift(shift time.Duration) *ShiftNode
- func (n *SampleNode) Spread(field string) *InfluxQLNode
- func (n *SampleNode) Stddev(field string) *InfluxQLNode
- func (n *SampleNode) Sum(field string) *InfluxQLNode
- func (n *SampleNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *SampleNode) Union(node ...Node) *UnionNode
- func (n *SampleNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *SampleNode) Window() *WindowNode
- type SensuHandler
- func (n SensuHandler) Alert() *AlertNode
- func (n SensuHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n SensuHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n SensuHandler) Count(field string) *InfluxQLNode
- func (n SensuHandler) Default() *DefaultNode
- func (n SensuHandler) Delete() *DeleteNode
- func (n SensuHandler) Derivative(field string) *DerivativeNode
- func (n SensuHandler) Difference(field string) *InfluxQLNode
- func (n SensuHandler) Distinct(field string) *InfluxQLNode
- func (n SensuHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n SensuHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n SensuHandler) First(field string) *InfluxQLNode
- func (n SensuHandler) Flatten() *FlattenNode
- func (n SensuHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n SensuHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n SensuHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n SensuHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n SensuHandler) InfluxDBOut() *InfluxDBOutNode
- func (n SensuHandler) Join(others ...Node) *JoinNode
- func (n SensuHandler) Last(field string) *InfluxQLNode
- func (n SensuHandler) Max(field string) *InfluxQLNode
- func (n SensuHandler) Mean(field string) *InfluxQLNode
- func (n SensuHandler) Median(field string) *InfluxQLNode
- func (n SensuHandler) Min(field string) *InfluxQLNode
- func (n SensuHandler) Mode(field string) *InfluxQLNode
- func (n SensuHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n SensuHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n SensuHandler) Sample(rate interface{}) *SampleNode
- func (n SensuHandler) Shift(shift time.Duration) *ShiftNode
- func (n SensuHandler) Spread(field string) *InfluxQLNode
- func (n SensuHandler) Stddev(field string) *InfluxQLNode
- func (n SensuHandler) Sum(field string) *InfluxQLNode
- func (n SensuHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n SensuHandler) Union(node ...Node) *UnionNode
- func (n SensuHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n SensuHandler) Window() *WindowNode
- type ShiftNode
- func (n *ShiftNode) Alert() *AlertNode
- func (n *ShiftNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *ShiftNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *ShiftNode) Count(field string) *InfluxQLNode
- func (n *ShiftNode) Default() *DefaultNode
- func (n *ShiftNode) Delete() *DeleteNode
- func (n *ShiftNode) Derivative(field string) *DerivativeNode
- func (n *ShiftNode) Difference(field string) *InfluxQLNode
- func (n *ShiftNode) Distinct(field string) *InfluxQLNode
- func (n *ShiftNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *ShiftNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *ShiftNode) First(field string) *InfluxQLNode
- func (n *ShiftNode) Flatten() *FlattenNode
- func (n *ShiftNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *ShiftNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *ShiftNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *ShiftNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *ShiftNode) InfluxDBOut() *InfluxDBOutNode
- func (n *ShiftNode) Join(others ...Node) *JoinNode
- func (n *ShiftNode) Last(field string) *InfluxQLNode
- func (n *ShiftNode) Log() *LogNode
- func (n *ShiftNode) Max(field string) *InfluxQLNode
- func (n *ShiftNode) Mean(field string) *InfluxQLNode
- func (n *ShiftNode) Median(field string) *InfluxQLNode
- func (n *ShiftNode) Min(field string) *InfluxQLNode
- func (n *ShiftNode) Mode(field string) *InfluxQLNode
- func (n *ShiftNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *ShiftNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *ShiftNode) Sample(rate interface{}) *SampleNode
- func (n *ShiftNode) Shift(shift time.Duration) *ShiftNode
- func (n *ShiftNode) Spread(field string) *InfluxQLNode
- func (n *ShiftNode) Stddev(field string) *InfluxQLNode
- func (n *ShiftNode) Sum(field string) *InfluxQLNode
- func (n *ShiftNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *ShiftNode) Union(node ...Node) *UnionNode
- func (n *ShiftNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *ShiftNode) Window() *WindowNode
- type SlackHandler
- func (n SlackHandler) Alert() *AlertNode
- func (n SlackHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n SlackHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n SlackHandler) Count(field string) *InfluxQLNode
- func (n SlackHandler) Default() *DefaultNode
- func (n SlackHandler) Delete() *DeleteNode
- func (n SlackHandler) Derivative(field string) *DerivativeNode
- func (n SlackHandler) Difference(field string) *InfluxQLNode
- func (n SlackHandler) Distinct(field string) *InfluxQLNode
- func (n SlackHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n SlackHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n SlackHandler) First(field string) *InfluxQLNode
- func (n SlackHandler) Flatten() *FlattenNode
- func (n SlackHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n SlackHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n SlackHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n SlackHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n SlackHandler) InfluxDBOut() *InfluxDBOutNode
- func (n SlackHandler) Join(others ...Node) *JoinNode
- func (n SlackHandler) Last(field string) *InfluxQLNode
- func (n SlackHandler) Max(field string) *InfluxQLNode
- func (n SlackHandler) Mean(field string) *InfluxQLNode
- func (n SlackHandler) Median(field string) *InfluxQLNode
- func (n SlackHandler) Min(field string) *InfluxQLNode
- func (n SlackHandler) Mode(field string) *InfluxQLNode
- func (n SlackHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n SlackHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n SlackHandler) Sample(rate interface{}) *SampleNode
- func (n SlackHandler) Shift(shift time.Duration) *ShiftNode
- func (n SlackHandler) Spread(field string) *InfluxQLNode
- func (n SlackHandler) Stddev(field string) *InfluxQLNode
- func (n SlackHandler) Sum(field string) *InfluxQLNode
- func (n SlackHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n SlackHandler) Union(node ...Node) *UnionNode
- func (n SlackHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n SlackHandler) Window() *WindowNode
- type StatsNode
- func (n *StatsNode) Alert() *AlertNode
- func (n *StatsNode) Align() *StatsNode
- func (n *StatsNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *StatsNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *StatsNode) Count(field string) *InfluxQLNode
- func (n *StatsNode) Default() *DefaultNode
- func (n *StatsNode) Delete() *DeleteNode
- func (n *StatsNode) Derivative(field string) *DerivativeNode
- func (n *StatsNode) Difference(field string) *InfluxQLNode
- func (n *StatsNode) Distinct(field string) *InfluxQLNode
- func (n *StatsNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *StatsNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *StatsNode) First(field string) *InfluxQLNode
- func (n *StatsNode) Flatten() *FlattenNode
- func (n *StatsNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *StatsNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *StatsNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *StatsNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *StatsNode) InfluxDBOut() *InfluxDBOutNode
- func (n *StatsNode) Join(others ...Node) *JoinNode
- func (n *StatsNode) Last(field string) *InfluxQLNode
- func (n *StatsNode) Log() *LogNode
- func (n *StatsNode) Max(field string) *InfluxQLNode
- func (n *StatsNode) Mean(field string) *InfluxQLNode
- func (n *StatsNode) Median(field string) *InfluxQLNode
- func (n *StatsNode) Min(field string) *InfluxQLNode
- func (n *StatsNode) Mode(field string) *InfluxQLNode
- func (n *StatsNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *StatsNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *StatsNode) Sample(rate interface{}) *SampleNode
- func (n *StatsNode) Shift(shift time.Duration) *ShiftNode
- func (n *StatsNode) Spread(field string) *InfluxQLNode
- func (n *StatsNode) Stddev(field string) *InfluxQLNode
- func (n *StatsNode) Sum(field string) *InfluxQLNode
- func (n *StatsNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *StatsNode) Union(node ...Node) *UnionNode
- func (n *StatsNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *StatsNode) Window() *WindowNode
- type StreamNode
- func (n *StreamNode) Children() []Node
- func (n *StreamNode) Deadman(threshold float64, interval time.Duration, expr ...*ast.LambdaNode) *AlertNode
- func (n *StreamNode) Desc() string
- func (s *StreamNode) From() *FromNode
- func (n *StreamNode) ID() ID
- func (n *StreamNode) Name() string
- func (n *StreamNode) Parents() []Node
- func (n *StreamNode) Provides() EdgeType
- func (n *StreamNode) SetName(name string)
- func (n *StreamNode) Stats(interval time.Duration) *StatsNode
- func (n *StreamNode) Wants() EdgeType
- type StringBulkPointAggregator
- type TalkHandler
- func (n TalkHandler) Alert() *AlertNode
- func (n TalkHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n TalkHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n TalkHandler) Count(field string) *InfluxQLNode
- func (n TalkHandler) Default() *DefaultNode
- func (n TalkHandler) Delete() *DeleteNode
- func (n TalkHandler) Derivative(field string) *DerivativeNode
- func (n TalkHandler) Difference(field string) *InfluxQLNode
- func (n TalkHandler) Distinct(field string) *InfluxQLNode
- func (n TalkHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n TalkHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n TalkHandler) First(field string) *InfluxQLNode
- func (n TalkHandler) Flatten() *FlattenNode
- func (n TalkHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n TalkHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n TalkHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n TalkHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n TalkHandler) InfluxDBOut() *InfluxDBOutNode
- func (n TalkHandler) Join(others ...Node) *JoinNode
- func (n TalkHandler) Last(field string) *InfluxQLNode
- func (n TalkHandler) Max(field string) *InfluxQLNode
- func (n TalkHandler) Mean(field string) *InfluxQLNode
- func (n TalkHandler) Median(field string) *InfluxQLNode
- func (n TalkHandler) Min(field string) *InfluxQLNode
- func (n TalkHandler) Mode(field string) *InfluxQLNode
- func (n TalkHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n TalkHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n TalkHandler) Sample(rate interface{}) *SampleNode
- func (n TalkHandler) Shift(shift time.Duration) *ShiftNode
- func (n TalkHandler) Spread(field string) *InfluxQLNode
- func (n TalkHandler) Stddev(field string) *InfluxQLNode
- func (n TalkHandler) Sum(field string) *InfluxQLNode
- func (n TalkHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n TalkHandler) Union(node ...Node) *UnionNode
- func (n TalkHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n TalkHandler) Window() *WindowNode
- type TelegramHandler
- func (n TelegramHandler) Alert() *AlertNode
- func (n TelegramHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n TelegramHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n TelegramHandler) Count(field string) *InfluxQLNode
- func (n TelegramHandler) Default() *DefaultNode
- func (n TelegramHandler) Delete() *DeleteNode
- func (n TelegramHandler) Derivative(field string) *DerivativeNode
- func (n TelegramHandler) Difference(field string) *InfluxQLNode
- func (tel *TelegramHandler) DisableNotification() *TelegramHandler
- func (tel *TelegramHandler) DisableWebPagePreview() *TelegramHandler
- func (n TelegramHandler) Distinct(field string) *InfluxQLNode
- func (n TelegramHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n TelegramHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n TelegramHandler) First(field string) *InfluxQLNode
- func (n TelegramHandler) Flatten() *FlattenNode
- func (n TelegramHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n TelegramHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n TelegramHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n TelegramHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n TelegramHandler) InfluxDBOut() *InfluxDBOutNode
- func (n TelegramHandler) Join(others ...Node) *JoinNode
- func (n TelegramHandler) Last(field string) *InfluxQLNode
- func (n TelegramHandler) Max(field string) *InfluxQLNode
- func (n TelegramHandler) Mean(field string) *InfluxQLNode
- func (n TelegramHandler) Median(field string) *InfluxQLNode
- func (n TelegramHandler) Min(field string) *InfluxQLNode
- func (n TelegramHandler) Mode(field string) *InfluxQLNode
- func (n TelegramHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n TelegramHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n TelegramHandler) Sample(rate interface{}) *SampleNode
- func (n TelegramHandler) Shift(shift time.Duration) *ShiftNode
- func (n TelegramHandler) Spread(field string) *InfluxQLNode
- func (n TelegramHandler) Stddev(field string) *InfluxQLNode
- func (n TelegramHandler) Sum(field string) *InfluxQLNode
- func (n TelegramHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n TelegramHandler) Union(node ...Node) *UnionNode
- func (n TelegramHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n TelegramHandler) Window() *WindowNode
- type TemplatePipeline
- type TopBottomCallInfo
- type UDFNode
- func (n *UDFNode) Alert() *AlertNode
- func (n *UDFNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (u *UDFNode) CallChainMethod(name string, args ...interface{}) (interface{}, error)
- func (n *UDFNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *UDFNode) Count(field string) *InfluxQLNode
- func (n *UDFNode) Default() *DefaultNode
- func (n *UDFNode) Delete() *DeleteNode
- func (n *UDFNode) Derivative(field string) *DerivativeNode
- func (u *UDFNode) Desc() string
- func (n *UDFNode) Difference(field string) *InfluxQLNode
- func (n *UDFNode) Distinct(field string) *InfluxQLNode
- func (n *UDFNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *UDFNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *UDFNode) First(field string) *InfluxQLNode
- func (n *UDFNode) Flatten() *FlattenNode
- func (n *UDFNode) GroupBy(tag ...interface{}) *GroupByNode
- func (u *UDFNode) HasChainMethod(name string) bool
- func (u *UDFNode) HasProperty(name string) bool
- func (n *UDFNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *UDFNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *UDFNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *UDFNode) InfluxDBOut() *InfluxDBOutNode
- func (n *UDFNode) Join(others ...Node) *JoinNode
- func (n *UDFNode) Last(field string) *InfluxQLNode
- func (n *UDFNode) Log() *LogNode
- func (n *UDFNode) Max(field string) *InfluxQLNode
- func (n *UDFNode) Mean(field string) *InfluxQLNode
- func (n *UDFNode) Median(field string) *InfluxQLNode
- func (n *UDFNode) Min(field string) *InfluxQLNode
- func (n *UDFNode) Mode(field string) *InfluxQLNode
- func (n *UDFNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *UDFNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (u *UDFNode) Property(name string) interface{}
- func (n *UDFNode) Sample(rate interface{}) *SampleNode
- func (u *UDFNode) SetProperty(name string, args ...interface{}) (interface{}, error)
- func (n *UDFNode) Shift(shift time.Duration) *ShiftNode
- func (n *UDFNode) Spread(field string) *InfluxQLNode
- func (n *UDFNode) Stddev(field string) *InfluxQLNode
- func (n *UDFNode) Sum(field string) *InfluxQLNode
- func (n *UDFNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *UDFNode) Union(node ...Node) *UnionNode
- func (n *UDFNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *UDFNode) Window() *WindowNode
- type UnionNode
- func (n *UnionNode) Alert() *AlertNode
- func (n *UnionNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *UnionNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *UnionNode) Count(field string) *InfluxQLNode
- func (n *UnionNode) Default() *DefaultNode
- func (n *UnionNode) Delete() *DeleteNode
- func (n *UnionNode) Derivative(field string) *DerivativeNode
- func (n *UnionNode) Difference(field string) *InfluxQLNode
- func (n *UnionNode) Distinct(field string) *InfluxQLNode
- func (n *UnionNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *UnionNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *UnionNode) First(field string) *InfluxQLNode
- func (n *UnionNode) Flatten() *FlattenNode
- func (n *UnionNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *UnionNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *UnionNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *UnionNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *UnionNode) InfluxDBOut() *InfluxDBOutNode
- func (n *UnionNode) Join(others ...Node) *JoinNode
- func (n *UnionNode) Last(field string) *InfluxQLNode
- func (n *UnionNode) Log() *LogNode
- func (n *UnionNode) Max(field string) *InfluxQLNode
- func (n *UnionNode) Mean(field string) *InfluxQLNode
- func (n *UnionNode) Median(field string) *InfluxQLNode
- func (n *UnionNode) Min(field string) *InfluxQLNode
- func (n *UnionNode) Mode(field string) *InfluxQLNode
- func (n *UnionNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *UnionNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *UnionNode) Sample(rate interface{}) *SampleNode
- func (n *UnionNode) Shift(shift time.Duration) *ShiftNode
- func (n *UnionNode) Spread(field string) *InfluxQLNode
- func (n *UnionNode) Stddev(field string) *InfluxQLNode
- func (n *UnionNode) Sum(field string) *InfluxQLNode
- func (n *UnionNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *UnionNode) Union(node ...Node) *UnionNode
- func (n *UnionNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *UnionNode) Window() *WindowNode
- type VictorOpsHandler
- func (n VictorOpsHandler) Alert() *AlertNode
- func (n VictorOpsHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n VictorOpsHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n VictorOpsHandler) Count(field string) *InfluxQLNode
- func (n VictorOpsHandler) Default() *DefaultNode
- func (n VictorOpsHandler) Delete() *DeleteNode
- func (n VictorOpsHandler) Derivative(field string) *DerivativeNode
- func (n VictorOpsHandler) Difference(field string) *InfluxQLNode
- func (n VictorOpsHandler) Distinct(field string) *InfluxQLNode
- func (n VictorOpsHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n VictorOpsHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n VictorOpsHandler) First(field string) *InfluxQLNode
- func (n VictorOpsHandler) Flatten() *FlattenNode
- func (n VictorOpsHandler) GroupBy(tag ...interface{}) *GroupByNode
- func (n VictorOpsHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n VictorOpsHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n VictorOpsHandler) HttpOut(endpoint string) *HTTPOutNode
- func (n VictorOpsHandler) InfluxDBOut() *InfluxDBOutNode
- func (n VictorOpsHandler) Join(others ...Node) *JoinNode
- func (n VictorOpsHandler) Last(field string) *InfluxQLNode
- func (n VictorOpsHandler) Max(field string) *InfluxQLNode
- func (n VictorOpsHandler) Mean(field string) *InfluxQLNode
- func (n VictorOpsHandler) Median(field string) *InfluxQLNode
- func (n VictorOpsHandler) Min(field string) *InfluxQLNode
- func (n VictorOpsHandler) Mode(field string) *InfluxQLNode
- func (n VictorOpsHandler) MovingAverage(field string, window int64) *InfluxQLNode
- func (n VictorOpsHandler) Percentile(field string, percentile float64) *InfluxQLNode
- func (n VictorOpsHandler) Sample(rate interface{}) *SampleNode
- func (n VictorOpsHandler) Shift(shift time.Duration) *ShiftNode
- func (n VictorOpsHandler) Spread(field string) *InfluxQLNode
- func (n VictorOpsHandler) Stddev(field string) *InfluxQLNode
- func (n VictorOpsHandler) Sum(field string) *InfluxQLNode
- func (n VictorOpsHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n VictorOpsHandler) Union(node ...Node) *UnionNode
- func (n VictorOpsHandler) Where(expression *ast.LambdaNode) *WhereNode
- func (n VictorOpsHandler) Window() *WindowNode
- type WhereNode
- func (n *WhereNode) Alert() *AlertNode
- func (n *WhereNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *WhereNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *WhereNode) Count(field string) *InfluxQLNode
- func (n *WhereNode) Default() *DefaultNode
- func (n *WhereNode) Delete() *DeleteNode
- func (n *WhereNode) Derivative(field string) *DerivativeNode
- func (n *WhereNode) Difference(field string) *InfluxQLNode
- func (n *WhereNode) Distinct(field string) *InfluxQLNode
- func (n *WhereNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *WhereNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *WhereNode) First(field string) *InfluxQLNode
- func (n *WhereNode) Flatten() *FlattenNode
- func (n *WhereNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *WhereNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *WhereNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *WhereNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *WhereNode) InfluxDBOut() *InfluxDBOutNode
- func (n *WhereNode) Join(others ...Node) *JoinNode
- func (n *WhereNode) Last(field string) *InfluxQLNode
- func (n *WhereNode) Log() *LogNode
- func (n *WhereNode) Max(field string) *InfluxQLNode
- func (n *WhereNode) Mean(field string) *InfluxQLNode
- func (n *WhereNode) Median(field string) *InfluxQLNode
- func (n *WhereNode) Min(field string) *InfluxQLNode
- func (n *WhereNode) Mode(field string) *InfluxQLNode
- func (n *WhereNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *WhereNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *WhereNode) Sample(rate interface{}) *SampleNode
- func (n *WhereNode) Shift(shift time.Duration) *ShiftNode
- func (n *WhereNode) Spread(field string) *InfluxQLNode
- func (n *WhereNode) Stddev(field string) *InfluxQLNode
- func (n *WhereNode) Sum(field string) *InfluxQLNode
- func (n *WhereNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *WhereNode) Union(node ...Node) *UnionNode
- func (n *WhereNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *WhereNode) Window() *WindowNode
- type WindowNode
- func (n *WindowNode) Alert() *AlertNode
- func (w *WindowNode) Align() *WindowNode
- func (n *WindowNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *WindowNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
- func (n *WindowNode) Count(field string) *InfluxQLNode
- func (n *WindowNode) Default() *DefaultNode
- func (n *WindowNode) Delete() *DeleteNode
- func (n *WindowNode) Derivative(field string) *DerivativeNode
- func (n *WindowNode) Difference(field string) *InfluxQLNode
- func (n *WindowNode) Distinct(field string) *InfluxQLNode
- func (n *WindowNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
- func (n *WindowNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
- func (n *WindowNode) First(field string) *InfluxQLNode
- func (n *WindowNode) Flatten() *FlattenNode
- func (n *WindowNode) GroupBy(tag ...interface{}) *GroupByNode
- func (n *WindowNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *WindowNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
- func (n *WindowNode) HttpOut(endpoint string) *HTTPOutNode
- func (n *WindowNode) InfluxDBOut() *InfluxDBOutNode
- func (n *WindowNode) Join(others ...Node) *JoinNode
- func (n *WindowNode) Last(field string) *InfluxQLNode
- func (n *WindowNode) Log() *LogNode
- func (n *WindowNode) Max(field string) *InfluxQLNode
- func (n *WindowNode) Mean(field string) *InfluxQLNode
- func (n *WindowNode) Median(field string) *InfluxQLNode
- func (n *WindowNode) Min(field string) *InfluxQLNode
- func (n *WindowNode) Mode(field string) *InfluxQLNode
- func (n *WindowNode) MovingAverage(field string, window int64) *InfluxQLNode
- func (n *WindowNode) Percentile(field string, percentile float64) *InfluxQLNode
- func (n *WindowNode) Sample(rate interface{}) *SampleNode
- func (n *WindowNode) Shift(shift time.Duration) *ShiftNode
- func (n *WindowNode) Spread(field string) *InfluxQLNode
- func (n *WindowNode) Stddev(field string) *InfluxQLNode
- func (n *WindowNode) Sum(field string) *InfluxQLNode
- func (n *WindowNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
- func (n *WindowNode) Union(node ...Node) *UnionNode
- func (n *WindowNode) Where(expression *ast.LambdaNode) *WhereNode
- func (n *WindowNode) Window() *WindowNode
Constants ¶
const DefaultBufferSize = 1000
const DefaultFlushInterval = time.Second * 10
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type AlertNode ¶
type AlertNode struct { // Template for constructing a unique ID for a given alert. // // Available template data: // // * Name -- Measurement name. // * TaskName -- The name of the task // * Group -- Concatenation of all group-by tags of the form [key=value,]+. // If no groupBy is performed equal to literal 'nil'. // * Tags -- Map of tags. Use '{{ index .Tags "key" }}' to get a specific tag value. // // Example: // stream // |from() // .measurement('cpu') // .groupBy('cpu') // |alert() // .id('kapacitor/{{ .Name }}/{{ .Group }}') // // ID: kapacitor/cpu/cpu=cpu0, // // Example: // stream // |from() // .measurement('cpu') // .groupBy('service') // |alert() // .id('kapacitor/{{ index .Tags "service" }}') // // ID: kapacitor/authentication // // Example: // stream // |from() // .measurement('cpu') // .groupBy('service', 'host') // |alert() // .id('kapacitor/{{ index .Tags "service" }}/{{ index .Tags "host" }}') // // ID: kapacitor/authentication/auth001.example.com // // Default: {{ .Name }}:{{ .Group }} Id string // Template for constructing a meaningful message for the alert. // // Available template data: // // * ID -- The ID of the alert. // * Name -- Measurement name. // * TaskName -- The name of the task // * Group -- Concatenation of all group-by tags of the form [key=value,]+. // If no groupBy is performed equal to literal 'nil'. // * Tags -- Map of tags. Use '{{ index .Tags "key" }}' to get a specific tag value. // * Level -- Alert Level, one of: INFO, WARNING, CRITICAL. // * Fields -- Map of fields. Use '{{ index .Fields "key" }}' to get a specific field value. // * Time -- The time of the point that triggered the event. // // Example: // stream // |from() // .measurement('cpu') // .groupBy('service', 'host') // |alert() // .id('{{ index .Tags "service" }}/{{ index .Tags "host" }}') // .message('{{ .ID }} is {{ .Level}} value: {{ index .Fields "value" }}') // // Message: authentication/auth001.example.com is CRITICAL value:42 // // Default: {{ .ID }} is {{ .Level }} Message string // Template for constructing a detailed HTML message for the alert. // The same template data is available as the AlertNode.Message property, // in addition to a Message field that contains the rendered Message value. // // The intent is that the Message property be a single line summary while the // Details property is a more detailed message possibly spanning multiple lines, // and containing HTML formatting. // // This template is rendered using the html/template package in Go so that // safe and valid HTML can be generated. // // The `json` method is available within the template to convert any variable to a valid // JSON string. // // Example: // |alert() // .id('{{ .Name }}') // .details(”' //<h1>{{ .ID }}</h1> //<b>{{ .Message }}</b> //Value: {{ index .Fields "value" }} //”') // .email() // // Default: {{ json . }} Details string // Filter expression for the INFO alert level. // An empty value indicates the level is invalid and is skipped. Info *ast.LambdaNode // Filter expression for the WARNING alert level. // An empty value indicates the level is invalid and is skipped. Warn *ast.LambdaNode // Filter expression for the CRITICAL alert level. // An empty value indicates the level is invalid and is skipped. Crit *ast.LambdaNode // Filter expression for reseting the INFO alert level to lower level. InfoReset *ast.LambdaNode // Filter expression for reseting the WARNING alert level to lower level. WarnReset *ast.LambdaNode // Filter expression for reseting the CRITICAL alert level to lower level. CritReset *ast.LambdaNode //tick:ignore UseFlapping bool `tick:"Flapping"` //tick:ignore FlapLow float64 //tick:ignore FlapHigh float64 // Number of previous states to remember when computing flapping levels and // checking for state changes. // Minimum value is 2 in order to keep track of current and previous states. // // Default: 21 History int64 // Optional tag key to use when tagging the data with the alert level. LevelTag string // Optional field key to add to the data, containing the alert level as a string. LevelField string // Optional field key to add the alert duration to the data. // The duration is always in units of nanoseconds. DurationField string // Optional tag key to use when tagging the data with the alert ID. IdTag string // Optional field key to add to the data, containing the alert ID as a string. IdField string // Indicates an alert should trigger only if all points in a batch match the criteria // tick:ignore AllFlag bool `tick:"All"` // Do not send recovery events. // tick:ignore NoRecoveriesFlag bool `tick:"NoRecoveries"` // Send alerts only on state changes. // tick:ignore IsStateChangesOnly bool `tick:"StateChangesOnly"` // Maximum interval to ignore non state changed events // tick:ignore StateChangesOnlyDuration time.Duration // Post the JSON alert data to the specified URL. // tick:ignore PostHandlers []*PostHandler `tick:"Post"` // Email handlers // tick:ignore EmailHandlers []*EmailHandler `tick:"Email"` // A commands to run when an alert triggers // tick:ignore ExecHandlers []*ExecHandler `tick:"Exec"` // Log JSON alert data to file. One event per line. // tick:ignore LogHandlers []*LogHandler `tick:"Log"` // Send alert to VictorOps. // tick:ignore VictorOpsHandlers []*VictorOpsHandler `tick:"VictorOps"` // Send alert to PagerDuty. // tick:ignore PagerDutyHandlers []*PagerDutyHandler `tick:"PagerDuty"` // Send alert to Sensu. // tick:ignore SensuHandlers []*SensuHandler `tick:"Sensu"` // Send alert to Slack. // tick:ignore SlackHandlers []*SlackHandler `tick:"Slack"` // Send alert to Telegram. // tick:ignore TelegramHandlers []*TelegramHandler `tick:"Telegram"` // Send alert to HipChat. // tick:ignore HipChatHandlers []*HipChatHandler `tick:"HipChat"` // Send alert to Alerta. // tick:ignore AlertaHandlers []*AlertaHandler `tick:"Alerta"` // Send alert to OpsGenie // tick:ignore OpsGenieHandlers []*OpsGenieHandler `tick:"OpsGenie"` // Send alert to Talk. // tick:ignore TalkHandlers []*TalkHandler `tick:"Talk"` // contains filtered or unexported fields }
An AlertNode can trigger an event of varying severity levels, and pass the event to alert handlers. The criteria for triggering an alert is specified via a [lambda expression](/kapacitor/latest/tick/expr/). See AlertNode.Info, AlertNode.Warn, and AlertNode.Crit below.
Different event handlers can be configured for each AlertNode. Some handlers like Email, HipChat, Sensu, Slack, OpsGenie, VictorOps, PagerDuty, Telegram and Talk have a configuration option 'global' that indicates that all alerts implicitly use the handler.
Available event handlers:
- log -- log alert data to file.
- post -- HTTP POST data to a specified URL.
- email -- Send and email with alert data.
- exec -- Execute a command passing alert data over STDIN.
- HipChat -- Post alert message to HipChat room.
- Alerta -- Post alert message to Alerta.
- Sensu -- Post alert message to Sensu client.
- Slack -- Post alert message to Slack channel.
- OpsGenie -- Send alert to OpsGenie.
- VictorOps -- Send alert to VictorOps.
- PagerDuty -- Send alert to PagerDuty.
- Talk -- Post alert message to Talk client.
- Telegram -- Post alert message to Telegram client.
See below for more details on configuring each handler.
Each event that gets sent to a handler contains the following alert data:
- ID -- the ID of the alert, user defined.
- Message -- the alert message, user defined.
- Details -- the alert details, user defined HTML content.
- Time -- the time the alert occurred.
- Duration -- the duration of the alert in nanoseconds.
- Level -- one of OK, INFO, WARNING or CRITICAL.
- Data -- influxql.Result containing the data that triggered the alert.
Events are sent to handlers if the alert is in a state other than 'OK' or the alert just changed to the 'OK' state from a non 'OK' state (a.k.a. the alert recovered). Using the AlertNode.StateChangesOnly property events will only be sent to handlers if the alert changed state.
It is valid to configure multiple alert handlers, even with the same type.
Example:
stream .groupBy('service') |alert() .id('kapacitor/{{ index .Tags "service" }}') .message('{{ .ID }} is {{ .Level }} value:{{ index .Fields "value" }}') .info(lambda: "value" > 10) .warn(lambda: "value" > 20) .crit(lambda: "value" > 30) .post("http://example.com/api/alert") .post("http://another.example.com/api/alert") .email('oncall@example.com')
Each expression maintains its own state. The order of execution for the expressions is not considered to be deterministic. For each point an expression may or may not be evaluated. If no expression is true then the alert is considered to be in the OK state.
Kapacitor supports alert reset expressions. This way when an alert enters a state, it can only be lowered in severity if its reset expression evaluates to true.
Example:
stream |from() .measurement('cpu') .where(lambda: "host" == 'serverA') .groupBy('host') |alert() .info(lambda: "value" > 60) .infoReset(lambda: "value" < 50) .warn(lambda: "value" > 70) .warnReset(lambda: "value" < 60) .crit(lambda: "value" > 80) .critReset(lambda: "value" < 70)
For example given the following values:
61 73 64 85 62 56 47
The corresponding alert states are:
INFO WARNING WARNING CRITICAL INFO INFO OK
Available Statistics:
- alerts_triggered -- Total number of alerts triggered
- oks_triggered -- Number of OK alerts triggered
- infos_triggered -- Number of Info alerts triggered
- warns_triggered -- Number of Warn alerts triggered
- crits_triggered -- Number of Crit alerts triggered
func (*AlertNode) Alert ¶ added in v0.13.0
func (n *AlertNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*AlertNode) Alerta ¶ added in v0.10.0
func (a *AlertNode) Alerta() *AlertaHandler
Send the alert to Alerta.
Example:
[alerta] enabled = true url = "https://alerta.yourdomain" token = "9hiWoDOZ9IbmHsOTeST123ABciWTIqXQVFDo63h9" environment = "Production" origin = "Kapacitor"
In order to not post a message every alert interval use AlertNode.StateChangesOnly so that only events where the alert changed state are sent to Alerta.
Send alerts to Alerta. The resource and event properties are required.
Example:
stream |alert() .alerta() .resource('Hostname or service') .event('Something went wrong')
Alerta also accepts optional alert information.
Example:
stream |alert() .alerta() .resource('Hostname or service') .event('Something went wrong') .environment('Development') .group('Dev. Servers')
NOTE: Alerta cannot be configured globally because of its required properties. tick:property
func (*AlertNode) All ¶ added in v0.13.0
Indicates an alert should trigger only if all points in a batch match the criteria. Does not apply to stream alerts. tick:property
func (*AlertNode) Bottom ¶ added in v0.13.0
func (n *AlertNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*AlertNode) ChainMethods ¶ added in v0.13.0
func (*AlertNode) Combine ¶ added in v1.0.0
func (n *AlertNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*AlertNode) Count ¶ added in v0.13.0
func (n *AlertNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*AlertNode) Default ¶ added in v0.13.0
func (n *AlertNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*AlertNode) Delete ¶ added in v1.0.0
func (n *AlertNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*AlertNode) Derivative ¶ added in v0.13.0
func (n *AlertNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*AlertNode) Difference ¶ added in v1.0.0
func (n *AlertNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*AlertNode) Distinct ¶ added in v0.13.0
func (n *AlertNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*AlertNode) Elapsed ¶ added in v0.13.0
func (n *AlertNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*AlertNode) Email ¶
func (a *AlertNode) Email(to ...string) *EmailHandler
Email the alert data.
If the To list is empty, the To addresses from the configuration are used. The email subject is the AlertNode.Message property. The email body is the AlertNode.Details property. The emails are sent as HTML emails and so the body can contain html markup.
If the 'smtp' section in the configuration has the option: global = true then all alerts are sent via email without the need to explicitly state it in the TICKscript.
Example:
|alert() .id('{{ .Name }}') // Email subject .meassage('{{ .ID }}:{{ .Level }}') //Email body as HTML .details('''
<h1>{{ .ID }}</h1> <b>{{ .Message }}</b> Value: {{ index .Fields "value" }} ”')
.email()
Send an email with custom subject and body.
Example:
[smtp] enabled = true host = "localhost" port = 25 username = "" password = "" from = "kapacitor@example.com" to = ["oncall@example.com"] # Set global to true so all alert trigger emails. global = true state-changes-only = true
Example:
stream |alert()
Send email to 'oncall@example.com' from 'kapacitor@example.com'
tick:property
func (*AlertNode) Eval ¶ added in v0.13.0
func (n *AlertNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*AlertNode) Exec ¶
func (a *AlertNode) Exec(executable string, args ...string) *ExecHandler
Execute a command whenever an alert is triggered and pass the alert data over STDIN in JSON format. tick:property
func (*AlertNode) First ¶ added in v0.13.0
func (n *AlertNode) First(field string) *InfluxQLNode
Select the first point.
func (*AlertNode) Flapping ¶
Perform flap detection on the alerts. The method used is similar method to Nagios: https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/flapping.html
Each different alerting level is considered a different state. The low and high thresholds are inverted thresholds of a percentage of state changes. Meaning that if the percentage of state changes goes above the `high` threshold, the alert enters a flapping state. The alert remains in the flapping state until the percentage of state changes goes below the `low` threshold. Typical values are low: 0.25 and high: 0.5. The percentage values represent the number state changes over the total possible number of state changes. A percentage change of 0.5 means that the alert changed state in half of the recorded history, and remained the same in the other half of the history. tick:property
func (*AlertNode) Flatten ¶ added in v1.0.0
func (n *AlertNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*AlertNode) GroupBy ¶ added in v0.13.0
func (n *AlertNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*AlertNode) HipChat ¶ added in v0.2.4
func (a *AlertNode) HipChat() *HipChatHandler
If the 'hipchat' section in the configuration has the option: global = true then all alerts are sent to HipChat without the need to explicitly state it in the TICKscript.
Example:
[hipchat] enabled = true url = "https://orgname.hipchat.com/v2/room" room = "Test Room" token = "9hiWoDOZ9IbmHsOTeST123ABciWTIqXQVFDo63h9" global = true state-changes-only = true
Example:
stream |alert()
Send alert to HipChat using default room 'Test Room'. tick:property
func (*AlertNode) HoltWinters ¶ added in v1.0.0
func (n *AlertNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*AlertNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *AlertNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*AlertNode) HttpOut ¶ added in v0.13.0
func (n *AlertNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*AlertNode) InfluxDBOut ¶ added in v0.13.0
func (n *AlertNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*AlertNode) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (*AlertNode) Last ¶ added in v0.13.0
func (n *AlertNode) Last(field string) *InfluxQLNode
Select the last point.
func (*AlertNode) Log ¶
func (a *AlertNode) Log(filepath string) *LogHandler
Log JSON alert data to file. One event per line. Must specify the absolute path to the log file. It will be created if it does not exist. Example:
stream |alert() .log('/tmp/alert')
Example:
stream |alert() .log('/tmp/alert') .mode(0644)
tick:property
func (*AlertNode) Max ¶ added in v0.13.0
func (n *AlertNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*AlertNode) Mean ¶ added in v0.13.0
func (n *AlertNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*AlertNode) Median ¶ added in v0.13.0
func (n *AlertNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*AlertNode) Min ¶ added in v0.13.0
func (n *AlertNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*AlertNode) Mode ¶ added in v1.0.0
func (n *AlertNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*AlertNode) MovingAverage ¶ added in v1.0.0
func (n *AlertNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*AlertNode) NoRecoveries ¶ added in v1.0.0
Do not send recovery alerts. tick:property
func (*AlertNode) OpsGenie ¶ added in v0.2.4
func (a *AlertNode) OpsGenie() *OpsGenieHandler
Send alert to OpsGenie. To use OpsGenie alerting you must first enable the 'Alert Ingestion API' in the 'Integrations' section of OpsGenie. Then place the API key from the URL into the 'opsgenie' section of the Kapacitor configuration.
Example:
[opsgenie] enabled = true api-key = "xxxxx" teams = ["everyone"] recipients = ["jim", "bob"]
With the correct configuration you can now use OpsGenie in TICKscripts.
Example:
stream |alert() .opsGenie()
Send alerts to OpsGenie using the teams and recipients in the configuration file.
Example:
stream |alert() .opsGenie() .teams('team_rocket','team_test')
Send alerts to OpsGenie with team set to 'team_rocket' and 'team_test'
If the 'opsgenie' section in the configuration has the option: global = true then all alerts are sent to OpsGenie without the need to explicitly state it in the TICKscript.
Example:
[opsgenie] enabled = true api-key = "xxxxx" recipients = ["johndoe"] global = true
Example:
stream |alert()
Send alert to OpsGenie using the default recipients, found in the configuration. tick:property
func (*AlertNode) PagerDuty ¶
func (a *AlertNode) PagerDuty() *PagerDutyHandler
Send the alert to PagerDuty. To use PagerDuty alerting you must first follow the steps to enable a new 'Generic API' service.
From https://developer.pagerduty.com/documentation/integration/events
- In your account, under the Services tab, click "Add New Service".
- Enter a name for the service and select an escalation policy. Then, select "Generic API" for the Service Type.
- Click the "Add Service" button.
- Once the service is created, you'll be taken to the service page. On this page, you'll see the "Service key", which is needed to access the API
Place the 'service key' into the 'pagerduty' section of the Kapacitor configuration as the option 'service-key'.
Example:
[pagerduty] enabled = true service-key = "xxxxxxxxx"
With the correct configuration you can now use PagerDuty in TICKscripts.
Example:
stream |alert() .pagerDuty()
If the 'pagerduty' section in the configuration has the option: global = true then all alerts are sent to PagerDuty without the need to explicitly state it in the TICKscript.
Example:
[pagerduty] enabled = true service-key = "xxxxxxxxx" global = true
Example:
stream |alert()
Send alert to PagerDuty. tick:property
func (*AlertNode) Percentile ¶ added in v0.13.0
func (n *AlertNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*AlertNode) Post ¶
func (a *AlertNode) Post(url string) *PostHandler
HTTP POST JSON alert data to a specified URL. tick:property
func (*AlertNode) Sample ¶ added in v0.13.0
func (n *AlertNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*AlertNode) Sensu ¶ added in v0.10.0
func (a *AlertNode) Sensu() *SensuHandler
Send the alert to Sensu.
Example:
[sensu] enabled = true url = "http://sensu:3030" source = "Kapacitor"
Example:
stream |alert() .sensu()
Send alerts to Sensu client.
tick:property
func (*AlertNode) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (*AlertNode) Slack ¶
func (a *AlertNode) Slack() *SlackHandler
Send the alert to Slack. To allow Kapacitor to post to Slack, go to the URL https://slack.com/services/new/incoming-webhook and create a new incoming webhook and place the generated URL in the 'slack' configuration section.
Example:
[slack] enabled = true url = "https://hooks.slack.com/services/xxxxxxxxx/xxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxx" channel = "#general"
In order to not post a message every alert interval use AlertNode.StateChangesOnly so that only events where the alert changed state are posted to the channel.
Example:
stream |alert() .slack()
Send alerts to Slack channel in the configuration file.
Example:
stream |alert() .slack() .channel('#alerts')
Send alerts to Slack channel '#alerts'
Example:
stream |alert() .slack() .channel('@jsmith')
Send alert to user '@jsmith'
If the 'slack' section in the configuration has the option: global = true then all alerts are sent to Slack without the need to explicitly state it in the TICKscript.
Example:
[slack] enabled = true url = "https://hooks.slack.com/services/xxxxxxxxx/xxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxx" channel = "#general" global = true state-changes-only = true
Example:
stream |alert()
Send alert to Slack using default channel '#general'. tick:property
func (*AlertNode) Spread ¶ added in v0.13.0
func (n *AlertNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*AlertNode) StateChangesOnly ¶
Only sends events where the state changed. Each different alert level OK, INFO, WARNING, and CRITICAL are considered different states.
Example:
stream |from() .measurement('cpu') |window() .period(10s) .every(10s) |alert() .crit(lambda: "value" > 10) .stateChangesOnly() .slack()
If the "value" is greater than 10 for a total of 60s, then only two events will be sent. First, when the value crosses the threshold, and second, when it falls back into an OK state. Without stateChangesOnly, the alert would have triggered 7 times: 6 times for each 10s period where the condition was met and once more for the recovery.
An optional maximum interval duration can be provided. An event will not be ignore (aka trigger an alert) if more than the maximum interval has elapsed since the last alert.
Example:
stream |from() .measurement('cpu') |window() .period(10s) .every(10s) |alert() .crit(lambda: "value" > 10) .stateChangesOnly(10m) .slack()
The abvove usage will only trigger alerts to slack on state changes or at least every 10 minutes.
tick:property
func (*AlertNode) Stddev ¶ added in v0.13.0
func (n *AlertNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*AlertNode) Sum ¶ added in v0.13.0
func (n *AlertNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*AlertNode) Talk ¶ added in v0.10.1
func (a *AlertNode) Talk() *TalkHandler
Send the alert to Talk. To use Talk alerting you must first follow the steps to create a new incoming webhook.
- Go to the URL https:/account.jianliao.com/signin.
- Sign in with you account. under the Team tab, click "Integrations".
- Select "Customize service", click incoming Webhook "Add" button.
- After choose the topic to connect with "xxx", click "Confirm Add" button.
- Once the service is created, you'll see the "Generate Webhook url".
Place the 'Generate Webhook url' into the 'Talk' section of the Kapacitor configuration as the option 'url'.
Example:
[talk] enabled = true url = "https://jianliao.com/v2/services/webhook/uuid" author_name = "Kapacitor"
Example:
stream |alert() .talk()
Send alerts to Talk client.
tick:property
func (*AlertNode) Telegram ¶ added in v1.0.0
func (a *AlertNode) Telegram() *TelegramHandler
Send the alert to Telegram. To allow Kapacitor to post to Telegram,
Example:
[telegram] enabled = true token = "123456789:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" chat-id = "xxxxxxxxx" parse-mode = "Markdown" disable-web-page-preview = true disable-notification = false
In order to not post a message every alert interval use AlertNode.StateChangesOnly so that only events where the alert changed state are posted to the chat-id.
Example:
stream |alert() .telegram()
Send alerts to Telegram chat-id in the configuration file.
Example:
stream |alert() .telegram() .chatId('xxxxxxx')
Send alerts to Telegram user/group 'xxxxxx'
If the 'telegram' section in the configuration has the option: global = true then all alerts are sent to Telegram without the need to explicitly state it in the TICKscript.
Example:
[telegram] enabled = true token = "123456789:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" chat-id = "xxxxxxxxx" global = true state-changes-only = true
Example:
stream |alert()
Send alert to Telegram using default chat-id 'xxxxxxxx'. tick:property
func (*AlertNode) Top ¶ added in v0.13.0
func (n *AlertNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*AlertNode) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (*AlertNode) VictorOps ¶
func (a *AlertNode) VictorOps() *VictorOpsHandler
Send alert to VictorOps. To use VictorOps alerting you must first enable the 'Alert Ingestion API' in the 'Integrations' section of VictorOps. Then place the API key from the URL into the 'victorops' section of the Kapacitor configuration.
Example:
[victorops] enabled = true api-key = "xxxxx" routing-key = "everyone"
With the correct configuration you can now use VictorOps in TICKscripts.
Example:
stream |alert() .victorOps()
Send alerts to VictorOps using the routing key in the configuration file.
Example:
stream |alert() .victorOps() .routingKey('team_rocket')
Send alerts to VictorOps with routing key 'team_rocket'
If the 'victorops' section in the configuration has the option: global = true then all alerts are sent to VictorOps without the need to explicitly state it in the TICKscript.
Example:
[victorops] enabled = true api-key = "xxxxx" routing-key = "everyone" global = true
Example:
stream |alert()
Send alert to VictorOps using the default routing key, found in the configuration. tick:property
func (*AlertNode) Where ¶ added in v0.13.0
func (n *AlertNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*AlertNode) Window ¶ added in v0.13.0
func (n *AlertNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type AlertaHandler ¶ added in v0.10.0
type AlertaHandler struct { *AlertNode // Alerta authentication token. // If empty uses the token from the configuration. Token string // Alerta resource. // Can be a template and has access to the same data as the AlertNode.Details property. // Default: {{ .Name }} Resource string // Alerta event. // Can be a template and has access to the same data as the idInfo property. // Default: {{ .ID }} Event string // Alerta environment. // Can be a template and has access to the same data as the AlertNode.Details property. // Defaut is set from the configuration. Environment string // Alerta group. // Can be a template and has access to the same data as the AlertNode.Details property. // Default: {{ .Group }} Group string // Alerta value. // Can be a template and has access to the same data as the AlertNode.Details property. // Default is an empty string. Value string // Alerta origin. // If empty uses the origin from the configuration. Origin string // List of effected Services // tick:ignore Service []string `tick:"Services"` }
tick:embedded:AlertNode.Alerta
func (AlertaHandler) Alert ¶ added in v0.13.0
func (n AlertaHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (AlertaHandler) Bottom ¶ added in v0.13.0
func (n AlertaHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (AlertaHandler) Combine ¶ added in v1.0.0
func (n AlertaHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (AlertaHandler) Count ¶ added in v0.13.0
func (n AlertaHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (AlertaHandler) Default ¶ added in v0.13.0
func (n AlertaHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (AlertaHandler) Delete ¶ added in v1.0.0
func (n AlertaHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (AlertaHandler) Derivative ¶ added in v0.13.0
func (n AlertaHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (AlertaHandler) Difference ¶ added in v1.0.0
func (n AlertaHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (AlertaHandler) Distinct ¶ added in v0.13.0
func (n AlertaHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (AlertaHandler) Elapsed ¶ added in v0.13.0
func (n AlertaHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (AlertaHandler) Eval ¶ added in v0.13.0
func (n AlertaHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (AlertaHandler) First ¶ added in v0.13.0
func (n AlertaHandler) First(field string) *InfluxQLNode
Select the first point.
func (AlertaHandler) Flatten ¶ added in v1.0.0
func (n AlertaHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (AlertaHandler) GroupBy ¶ added in v0.13.0
func (n AlertaHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (AlertaHandler) HoltWinters ¶ added in v1.0.0
func (n AlertaHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (AlertaHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n AlertaHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (AlertaHandler) HttpOut ¶ added in v0.13.0
func (n AlertaHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (AlertaHandler) InfluxDBOut ¶ added in v0.13.0
func (n AlertaHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (AlertaHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (AlertaHandler) Last ¶ added in v0.13.0
func (n AlertaHandler) Last(field string) *InfluxQLNode
Select the last point.
func (AlertaHandler) Max ¶ added in v0.13.0
func (n AlertaHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (AlertaHandler) Mean ¶ added in v0.13.0
func (n AlertaHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (AlertaHandler) Median ¶ added in v0.13.0
func (n AlertaHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (AlertaHandler) Min ¶ added in v0.13.0
func (n AlertaHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (AlertaHandler) Mode ¶ added in v1.0.0
func (n AlertaHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (AlertaHandler) MovingAverage ¶ added in v1.0.0
func (n AlertaHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (AlertaHandler) Percentile ¶ added in v0.13.0
func (n AlertaHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (AlertaHandler) Sample ¶ added in v0.13.0
func (n AlertaHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*AlertaHandler) Services ¶ added in v0.11.0
func (a *AlertaHandler) Services(service ...string) *AlertaHandler
List of effected services. If not specified defaults to the Name of the stream. tick:property
func (AlertaHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (AlertaHandler) Spread ¶ added in v0.13.0
func (n AlertaHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (AlertaHandler) Stddev ¶ added in v0.13.0
func (n AlertaHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (AlertaHandler) Sum ¶ added in v0.13.0
func (n AlertaHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (AlertaHandler) Top ¶ added in v0.13.0
func (n AlertaHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (AlertaHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (AlertaHandler) Where ¶ added in v0.13.0
func (n AlertaHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (AlertaHandler) Window ¶ added in v0.13.0
func (n AlertaHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type BatchNode ¶
type BatchNode struct {
// contains filtered or unexported fields
}
A node that handles creating several child QueryNodes. Each call to `query` creates a child batch node that can further be configured. See QueryNode The `batch` variable in batch tasks is an instance of a BatchNode.
Example:
var errors = batch |query('SELECT value from errors') ... var views = batch |query('SELECT value from views') ...
Available Statistics:
- query_errors -- number of errors when querying
- connect_errors -- number of errors connecting to InfluxDB
- batches_queried -- number of batches returned from queries
- points_queried -- total number of points in batches
func (*BatchNode) Deadman ¶ added in v0.13.0
func (n *BatchNode) Deadman(threshold float64, interval time.Duration, expr ...*ast.LambdaNode) *AlertNode
Helper function for creating an alert on low throughput, a.k.a. deadman's switch.
- Threshold -- trigger alert if throughput drops below threshold in points/interval. - Interval -- how often to check the throughput. - Expressions -- optional list of expressions to also evaluate. Useful for time of day alerting.
Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |deadman(100.0, 10s) //Do normal processing of data data...
The above is equivalent to this Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |stats(10s) .align() |derivative('emitted') .unit(10s) .nonNegative() |alert() .id('node \'stream0\' in task \'{{ .TaskName }}\'') .message('{{ .ID }} is {{ if eq .Level "OK" }}alive{{ else }}dead{{ end }}: {{ index .Fields "emitted" | printf "%0.3f" }} points/10s.') .crit(lambda: "emitted" <= 100.0) //Do normal processing of data data...
The `id` and `message` alert properties can be configured globally via the 'deadman' configuration section.
Since the AlertNode is the last piece it can be further modified as usual. Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |deadman(100.0, 10s) .slack() .channel('#dead_tasks') //Do normal processing of data data...
You can specify additional lambda expressions to further constrain when the deadman's switch is triggered. Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. // Only trigger the alert if the time of day is between 8am-5pm. data |deadman(100.0, 10s, lambda: hour("time") >= 8 AND hour("time") <= 17) //Do normal processing of data data...
func (*BatchNode) Query ¶ added in v0.13.0
The query to execute. Must not contain a time condition in the `WHERE` clause or contain a `GROUP BY` clause. The time conditions are added dynamically according to the period, offset and schedule. The `GROUP BY` clause is added dynamically according to the dimensions passed to the `groupBy` method.
func (*BatchNode) Stats ¶ added in v0.13.0
Create a new stream of data that contains the internal statistics of the node. The interval represents how often to emit the statistics based on real time. This means the interval time is independent of the times of the data points the source node is receiving.
type BooleanBulkPointAggregator ¶ added in v1.0.0
type BooleanBulkPointAggregator interface { influxql.BooleanPointAggregator influxql.BooleanBulkPointAggregator }
type CombineNode ¶ added in v1.0.0
type CombineNode struct { // The list of expressions for matching pairs // tick:ignore Lambdas []*ast.LambdaNode // The alias names of the two parents. // Note: // Names[1] corresponds to the left parent // Names[0] corresponds to the right parent // tick:ignore Names []string `tick:"As"` // The delimiter between the As names and existing field an tag keys. // Can be the empty string, but you are responsible for ensuring conflicts are not possible if you use the empty string. Delimiter string // The maximum duration of time that two incoming points // can be apart and still be considered to be equal in time. // The joined data point's time will be rounded to the nearest // multiple of the tolerance duration. Tolerance time.Duration // Maximum number of possible combinations. // Since the number of possible combinations can grow very rapidly // you can set a maximum number of combinations allowed. // If the max is crossed, an error is logged and the combinations are not calculated. // Default: 10,000 Max int64 // contains filtered or unexported fields }
Combine the data from a single node with itself. Points with the same time are grouped and then combinations are created. The size of the combinations is defined by how many expressions are given. Combinations are order independent and will not ever include the same point multiple times.
Example:
stream |from() .measurement('request_latency') |combine(lambda: "service" == 'login', lambda: TRUE) .as('login', 'other') // points that are within 1 second are considered the same time. .tolerance(1s) // delimiter for new field and tag names .delimiter('.') // Change group by to be new other.service tag |groupBy('other.service') // Both the "value" fields from each data point have been prefixed // with the respective names 'login' and 'other'. |eval(lambda: "login.value" / "other.value") .as('ratio') ...
In the above example the data points for the `login` service are combined with the data points from all other services.
Example:
|combine(lambda: TRUE, lambda: TRUE) .as('login', 'other')
In the above example all combination pairs are created.
Example:
|combine(lambda: TRUE, lambda: TRUE, lambda: TRUE) .as('login', 'other', 'another')
In the above example all combinations triples are created.
func (*CombineNode) Alert ¶ added in v1.0.0
func (n *CombineNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*CombineNode) As ¶ added in v1.0.0
func (n *CombineNode) As(names ...string) *CombineNode
Prefix names for all fields from the respective nodes. Each field from the parent nodes will be prefixed with the provided name and a '.'. See the example above.
The names cannot have a dot '.' character.
tick:property
func (*CombineNode) Bottom ¶ added in v1.0.0
func (n *CombineNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*CombineNode) Combine ¶ added in v1.0.0
func (n *CombineNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*CombineNode) Count ¶ added in v1.0.0
func (n *CombineNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*CombineNode) Default ¶ added in v1.0.0
func (n *CombineNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*CombineNode) Delete ¶ added in v1.0.0
func (n *CombineNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*CombineNode) Derivative ¶ added in v1.0.0
func (n *CombineNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*CombineNode) Difference ¶ added in v1.0.0
func (n *CombineNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*CombineNode) Distinct ¶ added in v1.0.0
func (n *CombineNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*CombineNode) Elapsed ¶ added in v1.0.0
func (n *CombineNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*CombineNode) Eval ¶ added in v1.0.0
func (n *CombineNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*CombineNode) First ¶ added in v1.0.0
func (n *CombineNode) First(field string) *InfluxQLNode
Select the first point.
func (*CombineNode) Flatten ¶ added in v1.0.0
func (n *CombineNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*CombineNode) GroupBy ¶ added in v1.0.0
func (n *CombineNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*CombineNode) HoltWinters ¶ added in v1.0.0
func (n *CombineNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*CombineNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *CombineNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*CombineNode) HttpOut ¶ added in v1.0.0
func (n *CombineNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*CombineNode) InfluxDBOut ¶ added in v1.0.0
func (n *CombineNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*CombineNode) Join ¶ added in v1.0.0
Join this node with other nodes. The data are joined on timestamp.
func (*CombineNode) Last ¶ added in v1.0.0
func (n *CombineNode) Last(field string) *InfluxQLNode
Select the last point.
func (*CombineNode) Log ¶ added in v1.0.0
func (n *CombineNode) Log() *LogNode
Create a node that logs all data it receives.
func (*CombineNode) Max ¶ added in v1.0.0
func (n *CombineNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*CombineNode) Mean ¶ added in v1.0.0
func (n *CombineNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*CombineNode) Median ¶ added in v1.0.0
func (n *CombineNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*CombineNode) Min ¶ added in v1.0.0
func (n *CombineNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*CombineNode) Mode ¶ added in v1.0.0
func (n *CombineNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*CombineNode) MovingAverage ¶ added in v1.0.0
func (n *CombineNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*CombineNode) Percentile ¶ added in v1.0.0
func (n *CombineNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*CombineNode) Sample ¶ added in v1.0.0
func (n *CombineNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*CombineNode) Shift ¶ added in v1.0.0
Create a new node that shifts the incoming points or batches in time.
func (*CombineNode) Spread ¶ added in v1.0.0
func (n *CombineNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*CombineNode) Stddev ¶ added in v1.0.0
func (n *CombineNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*CombineNode) Sum ¶ added in v1.0.0
func (n *CombineNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*CombineNode) Top ¶ added in v1.0.0
func (n *CombineNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*CombineNode) Union ¶ added in v1.0.0
Perform the union of this node and all other given nodes.
func (*CombineNode) Where ¶ added in v1.0.0
func (n *CombineNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*CombineNode) Window ¶ added in v1.0.0
func (n *CombineNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type DeadmanService ¶ added in v0.10.0
type DeadmanService interface { Interval() time.Duration Threshold() float64 Id() string Message() string Global() bool }
Information relavant to configuring a deadman's swith
type DefaultNode ¶ added in v0.13.0
type DefaultNode struct { // Set of fields to default // tick:ignore Fields map[string]interface{} `tick:"Field"` // Set of tags to default // tick:ignore Tags map[string]string `tick:"Tag"` // contains filtered or unexported fields }
Defaults fields and tags on data points.
Example:
stream |default() .field('value', 0.0) .tag('host', '')
The above example will set the field `value` to float64(0) if it does not already exist It will also set the tag `host` to string("") if it does not already exist.
Available Statistics:
- fields_defaulted -- number of fields that were missing
- tags_defaulted -- number of tags that were missing
func (*DefaultNode) Alert ¶ added in v0.13.0
func (n *DefaultNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*DefaultNode) Bottom ¶ added in v0.13.0
func (n *DefaultNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*DefaultNode) Combine ¶ added in v1.0.0
func (n *DefaultNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*DefaultNode) Count ¶ added in v0.13.0
func (n *DefaultNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*DefaultNode) Default ¶ added in v0.13.0
func (n *DefaultNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*DefaultNode) Delete ¶ added in v1.0.0
func (n *DefaultNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*DefaultNode) Derivative ¶ added in v0.13.0
func (n *DefaultNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*DefaultNode) Difference ¶ added in v1.0.0
func (n *DefaultNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*DefaultNode) Distinct ¶ added in v0.13.0
func (n *DefaultNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*DefaultNode) Elapsed ¶ added in v0.13.0
func (n *DefaultNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*DefaultNode) Eval ¶ added in v0.13.0
func (n *DefaultNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*DefaultNode) Field ¶ added in v0.13.0
func (n *DefaultNode) Field(name string, value interface{}) *DefaultNode
Define a field default. tick:property
func (*DefaultNode) First ¶ added in v0.13.0
func (n *DefaultNode) First(field string) *InfluxQLNode
Select the first point.
func (*DefaultNode) Flatten ¶ added in v1.0.0
func (n *DefaultNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*DefaultNode) GroupBy ¶ added in v0.13.0
func (n *DefaultNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*DefaultNode) HoltWinters ¶ added in v1.0.0
func (n *DefaultNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*DefaultNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *DefaultNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*DefaultNode) HttpOut ¶ added in v0.13.0
func (n *DefaultNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*DefaultNode) InfluxDBOut ¶ added in v0.13.0
func (n *DefaultNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*DefaultNode) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (*DefaultNode) Last ¶ added in v0.13.0
func (n *DefaultNode) Last(field string) *InfluxQLNode
Select the last point.
func (*DefaultNode) Log ¶ added in v0.13.0
func (n *DefaultNode) Log() *LogNode
Create a node that logs all data it receives.
func (*DefaultNode) Max ¶ added in v0.13.0
func (n *DefaultNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*DefaultNode) Mean ¶ added in v0.13.0
func (n *DefaultNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*DefaultNode) Median ¶ added in v0.13.0
func (n *DefaultNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*DefaultNode) Min ¶ added in v0.13.0
func (n *DefaultNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*DefaultNode) Mode ¶ added in v1.0.0
func (n *DefaultNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*DefaultNode) MovingAverage ¶ added in v1.0.0
func (n *DefaultNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*DefaultNode) Percentile ¶ added in v0.13.0
func (n *DefaultNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*DefaultNode) Sample ¶ added in v0.13.0
func (n *DefaultNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*DefaultNode) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (*DefaultNode) Spread ¶ added in v0.13.0
func (n *DefaultNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*DefaultNode) Stddev ¶ added in v0.13.0
func (n *DefaultNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*DefaultNode) Sum ¶ added in v0.13.0
func (n *DefaultNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*DefaultNode) Tag ¶ added in v0.13.0
func (n *DefaultNode) Tag(name string, value string) *DefaultNode
Define a tag default. tick:property
func (*DefaultNode) Top ¶ added in v0.13.0
func (n *DefaultNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*DefaultNode) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (*DefaultNode) Where ¶ added in v0.13.0
func (n *DefaultNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*DefaultNode) Window ¶ added in v0.13.0
func (n *DefaultNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type DeleteNode ¶ added in v1.0.0
type DeleteNode struct { // Set of fields to delete // tick:ignore Fields []string `tick:"Field"` // Set of tags to delete // tick:ignore Tags []string `tick:"Tag"` // contains filtered or unexported fields }
Deletes fields and tags from data points.
Example:
stream |delete() .field('value') .tag('host')
The above example will remove the field `value` and the tag `host`, from each point.
Available Statistics:
- fields_deleted -- number of fields that were deleted. Only counts if the field already existed.
- tags_deleted -- number of tags that were deleted. Only counts if the tag already existed.
func (*DeleteNode) Alert ¶ added in v1.0.0
func (n *DeleteNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*DeleteNode) Bottom ¶ added in v1.0.0
func (n *DeleteNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*DeleteNode) Combine ¶ added in v1.0.0
func (n *DeleteNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*DeleteNode) Count ¶ added in v1.0.0
func (n *DeleteNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*DeleteNode) Default ¶ added in v1.0.0
func (n *DeleteNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*DeleteNode) Delete ¶ added in v1.0.0
func (n *DeleteNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*DeleteNode) Derivative ¶ added in v1.0.0
func (n *DeleteNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*DeleteNode) Difference ¶ added in v1.0.0
func (n *DeleteNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*DeleteNode) Distinct ¶ added in v1.0.0
func (n *DeleteNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*DeleteNode) Elapsed ¶ added in v1.0.0
func (n *DeleteNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*DeleteNode) Eval ¶ added in v1.0.0
func (n *DeleteNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*DeleteNode) Field ¶ added in v1.0.0
func (n *DeleteNode) Field(name string) *DeleteNode
Delete a field. tick:property
func (*DeleteNode) First ¶ added in v1.0.0
func (n *DeleteNode) First(field string) *InfluxQLNode
Select the first point.
func (*DeleteNode) Flatten ¶ added in v1.0.0
func (n *DeleteNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*DeleteNode) GroupBy ¶ added in v1.0.0
func (n *DeleteNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*DeleteNode) HoltWinters ¶ added in v1.0.0
func (n *DeleteNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*DeleteNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *DeleteNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*DeleteNode) HttpOut ¶ added in v1.0.0
func (n *DeleteNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*DeleteNode) InfluxDBOut ¶ added in v1.0.0
func (n *DeleteNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*DeleteNode) Join ¶ added in v1.0.0
Join this node with other nodes. The data are joined on timestamp.
func (*DeleteNode) Last ¶ added in v1.0.0
func (n *DeleteNode) Last(field string) *InfluxQLNode
Select the last point.
func (*DeleteNode) Log ¶ added in v1.0.0
func (n *DeleteNode) Log() *LogNode
Create a node that logs all data it receives.
func (*DeleteNode) Max ¶ added in v1.0.0
func (n *DeleteNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*DeleteNode) Mean ¶ added in v1.0.0
func (n *DeleteNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*DeleteNode) Median ¶ added in v1.0.0
func (n *DeleteNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*DeleteNode) Min ¶ added in v1.0.0
func (n *DeleteNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*DeleteNode) Mode ¶ added in v1.0.0
func (n *DeleteNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*DeleteNode) MovingAverage ¶ added in v1.0.0
func (n *DeleteNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*DeleteNode) Percentile ¶ added in v1.0.0
func (n *DeleteNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*DeleteNode) Sample ¶ added in v1.0.0
func (n *DeleteNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*DeleteNode) Shift ¶ added in v1.0.0
Create a new node that shifts the incoming points or batches in time.
func (*DeleteNode) Spread ¶ added in v1.0.0
func (n *DeleteNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*DeleteNode) Stddev ¶ added in v1.0.0
func (n *DeleteNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*DeleteNode) Sum ¶ added in v1.0.0
func (n *DeleteNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*DeleteNode) Tag ¶ added in v1.0.0
func (n *DeleteNode) Tag(name string) *DeleteNode
Delete a tag. tick:property
func (*DeleteNode) Top ¶ added in v1.0.0
func (n *DeleteNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*DeleteNode) Union ¶ added in v1.0.0
Perform the union of this node and all other given nodes.
func (*DeleteNode) Where ¶ added in v1.0.0
func (n *DeleteNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*DeleteNode) Window ¶ added in v1.0.0
func (n *DeleteNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type DerivativeNode ¶
type DerivativeNode struct { // The field to use when calculating the derivative // tick:ignore Field string // The new name of the derivative field. // Default is the name of the field used // when calculating the derivative. As string // The time unit of the resulting derivative value. // Default: 1s Unit time.Duration // Where negative values are acceptable. // tick:ignore NonNegativeFlag bool `tick:"NonNegative"` // contains filtered or unexported fields }
Compute the derivative of a stream or batch. The derivative is computed on a single field and behaves similarly to the InfluxQL derivative function. Kapacitor has its own implementation of the derivative function, and, as a result, is not part of the normal InfluxQL functions.
Example:
stream |from() .measurement('net_rx_packets') |derivative('value') .unit(1s) // default .nonNegative() ...
Computes the derivative via:
(current - previous ) / ( time_difference / unit)
For batch edges the derivative is computed for each point in the batch and because of boundary conditions the number of points is reduced by one.
func (*DerivativeNode) Alert ¶
func (n *DerivativeNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*DerivativeNode) Bottom ¶ added in v0.11.0
func (n *DerivativeNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*DerivativeNode) Combine ¶ added in v1.0.0
func (n *DerivativeNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*DerivativeNode) Count ¶ added in v0.11.0
func (n *DerivativeNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*DerivativeNode) Default ¶ added in v0.13.0
func (n *DerivativeNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*DerivativeNode) Delete ¶ added in v1.0.0
func (n *DerivativeNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*DerivativeNode) Derivative ¶
func (n *DerivativeNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*DerivativeNode) Difference ¶ added in v1.0.0
func (n *DerivativeNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*DerivativeNode) Distinct ¶ added in v0.11.0
func (n *DerivativeNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*DerivativeNode) Elapsed ¶ added in v0.13.0
func (n *DerivativeNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*DerivativeNode) Eval ¶
func (n *DerivativeNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*DerivativeNode) First ¶ added in v0.11.0
func (n *DerivativeNode) First(field string) *InfluxQLNode
Select the first point.
func (*DerivativeNode) Flatten ¶ added in v1.0.0
func (n *DerivativeNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*DerivativeNode) GroupBy ¶
func (n *DerivativeNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*DerivativeNode) HoltWinters ¶ added in v1.0.0
func (n *DerivativeNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*DerivativeNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *DerivativeNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*DerivativeNode) HttpOut ¶
func (n *DerivativeNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*DerivativeNode) InfluxDBOut ¶
func (n *DerivativeNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*DerivativeNode) Last ¶ added in v0.11.0
func (n *DerivativeNode) Last(field string) *InfluxQLNode
Select the last point.
func (*DerivativeNode) Log ¶ added in v0.11.0
func (n *DerivativeNode) Log() *LogNode
Create a node that logs all data it receives.
func (*DerivativeNode) Max ¶ added in v0.11.0
func (n *DerivativeNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*DerivativeNode) Mean ¶ added in v0.11.0
func (n *DerivativeNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*DerivativeNode) Median ¶ added in v0.11.0
func (n *DerivativeNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*DerivativeNode) Min ¶ added in v0.11.0
func (n *DerivativeNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*DerivativeNode) Mode ¶ added in v1.0.0
func (n *DerivativeNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*DerivativeNode) MovingAverage ¶ added in v1.0.0
func (n *DerivativeNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*DerivativeNode) NonNegative ¶
func (d *DerivativeNode) NonNegative() *DerivativeNode
If called the derivative will skip negative results. tick:property
func (*DerivativeNode) Percentile ¶ added in v0.11.0
func (n *DerivativeNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*DerivativeNode) Sample ¶
func (n *DerivativeNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*DerivativeNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*DerivativeNode) Spread ¶ added in v0.11.0
func (n *DerivativeNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*DerivativeNode) Stddev ¶ added in v0.11.0
func (n *DerivativeNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*DerivativeNode) Sum ¶ added in v0.11.0
func (n *DerivativeNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*DerivativeNode) Top ¶ added in v0.11.0
func (n *DerivativeNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*DerivativeNode) Where ¶
func (n *DerivativeNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*DerivativeNode) Window ¶
func (n *DerivativeNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type EdgeType ¶
type EdgeType int
The type of data that travels along an edge connecting two nodes in a Pipeline.
type EmailHandler ¶ added in v0.2.4
type EmailHandler struct { *AlertNode // List of email recipients. // tick:ignore ToList []string `tick:"To"` }
Email AlertHandler tick:embedded:AlertNode.Email
func (EmailHandler) Alert ¶ added in v0.13.0
func (n EmailHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (EmailHandler) Bottom ¶ added in v0.13.0
func (n EmailHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (EmailHandler) Combine ¶ added in v1.0.0
func (n EmailHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (EmailHandler) Count ¶ added in v0.13.0
func (n EmailHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (EmailHandler) Default ¶ added in v0.13.0
func (n EmailHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (EmailHandler) Delete ¶ added in v1.0.0
func (n EmailHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (EmailHandler) Derivative ¶ added in v0.13.0
func (n EmailHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (EmailHandler) Difference ¶ added in v1.0.0
func (n EmailHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (EmailHandler) Distinct ¶ added in v0.13.0
func (n EmailHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (EmailHandler) Elapsed ¶ added in v0.13.0
func (n EmailHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (EmailHandler) Eval ¶ added in v0.13.0
func (n EmailHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (EmailHandler) First ¶ added in v0.13.0
func (n EmailHandler) First(field string) *InfluxQLNode
Select the first point.
func (EmailHandler) Flatten ¶ added in v1.0.0
func (n EmailHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (EmailHandler) GroupBy ¶ added in v0.13.0
func (n EmailHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (EmailHandler) HoltWinters ¶ added in v1.0.0
func (n EmailHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (EmailHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n EmailHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (EmailHandler) HttpOut ¶ added in v0.13.0
func (n EmailHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (EmailHandler) InfluxDBOut ¶ added in v0.13.0
func (n EmailHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (EmailHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (EmailHandler) Last ¶ added in v0.13.0
func (n EmailHandler) Last(field string) *InfluxQLNode
Select the last point.
func (EmailHandler) Max ¶ added in v0.13.0
func (n EmailHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (EmailHandler) Mean ¶ added in v0.13.0
func (n EmailHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (EmailHandler) Median ¶ added in v0.13.0
func (n EmailHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (EmailHandler) Min ¶ added in v0.13.0
func (n EmailHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (EmailHandler) Mode ¶ added in v1.0.0
func (n EmailHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (EmailHandler) MovingAverage ¶ added in v1.0.0
func (n EmailHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (EmailHandler) Percentile ¶ added in v0.13.0
func (n EmailHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (EmailHandler) Sample ¶ added in v0.13.0
func (n EmailHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (EmailHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (EmailHandler) Spread ¶ added in v0.13.0
func (n EmailHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (EmailHandler) Stddev ¶ added in v0.13.0
func (n EmailHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (EmailHandler) Sum ¶ added in v0.13.0
func (n EmailHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*EmailHandler) To ¶ added in v1.0.0
func (h *EmailHandler) To(to ...string) *EmailHandler
Define the To addresses for the email alert. Multiple calls append to the existing list of addresses. If empty uses the addresses from the configuration.
Example:
|alert() .id('{{ .Name }}') // Email subject .meassage('{{ .ID }}:{{ .Level }}') //Email body as HTML .details('''
<h1>{{ .ID }}</h1> <b>{{ .Message }}</b> Value: {{ index .Fields "value" }} ”')
.email('admin@example.com') .to('oncall@example.com') .to('support@example.com')
All three email addresses will receive the alert message.
Passing addresses to the `email` property directly or using the `email.to` property is the same. tick:property
func (EmailHandler) Top ¶ added in v0.13.0
func (n EmailHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (EmailHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (EmailHandler) Where ¶ added in v0.13.0
func (n EmailHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (EmailHandler) Window ¶ added in v0.13.0
func (n EmailHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type EvalNode ¶
type EvalNode struct { // The name of the field that results from applying the expression. // tick:ignore AsList []string `tick:"As"` // The names of the expressions that should be converted to tags. // tick:ignore TagsList []string `tick:"Tags"` // tick:ignore Lambdas []*ast.LambdaNode // tick:ignore KeepFlag bool `tick:"Keep"` // List of fields to keep // if empty and KeepFlag is true // keep all fields. // tick:ignore KeepList []string // tick:ignore QuiteFlag bool `tick:"Quiet"` // contains filtered or unexported fields }
Evaluates expressions on each data point it receives. A list of expressions may be provided and will be evaluated in the order they are given. The results of expressions are available to later expressions in the list. See the property EvalNode.As for details on how to reference the results.
Example:
stream |eval(lambda: "error_count" / "total_count") .as('error_percent')
The above example will add a new field `error_percent` to each data point with the result of `error_count / total_count` where `error_count` and `total_count` are existing fields on the data point.
Available Statistics:
- eval_errors -- number of errors evaluating any expressions.
func (*EvalNode) Alert ¶
func (n *EvalNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*EvalNode) As ¶
List of names for each expression. The expressions are evaluated in order. The result of an expression may be referenced by later expressions via the name provided.
Example:
stream |eval(lambda: "value" * "value", lambda: 1.0 / "value2") .as('value2', 'inv_value2')
The above example calculates two fields from the value and names them `value2` and `inv_value2` respectively.
tick:property
func (*EvalNode) Bottom ¶ added in v0.11.0
func (n *EvalNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*EvalNode) Combine ¶ added in v1.0.0
func (n *EvalNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*EvalNode) Count ¶ added in v0.11.0
func (n *EvalNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*EvalNode) Default ¶ added in v0.13.0
func (n *EvalNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*EvalNode) Delete ¶ added in v1.0.0
func (n *EvalNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*EvalNode) Derivative ¶
func (n *EvalNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*EvalNode) Difference ¶ added in v1.0.0
func (n *EvalNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*EvalNode) Distinct ¶ added in v0.11.0
func (n *EvalNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*EvalNode) Elapsed ¶ added in v0.13.0
func (n *EvalNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*EvalNode) Eval ¶
func (n *EvalNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*EvalNode) First ¶ added in v0.11.0
func (n *EvalNode) First(field string) *InfluxQLNode
Select the first point.
func (*EvalNode) Flatten ¶ added in v1.0.0
func (n *EvalNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*EvalNode) GroupBy ¶
func (n *EvalNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*EvalNode) HoltWinters ¶ added in v1.0.0
func (n *EvalNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*EvalNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *EvalNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*EvalNode) HttpOut ¶
func (n *EvalNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*EvalNode) InfluxDBOut ¶
func (n *EvalNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*EvalNode) Keep ¶
If called the existing fields will be preserved in addition to the new fields being set. If not called then only new fields are preserved. (Tags are always preserved regardless how `keep` is used.)
Optionally, intermediate values can be discarded by passing a list of field names to be kept. Only fields in the list will be retained, the rest will be discarded. If no list is given then all fields are retained.
Example:
stream |eval(lambda: "value" * "value", lambda: 1.0 / "value2") .as('value2', 'inv_value2') .keep('value', 'inv_value2')
In the above example the original field `value` is preserved. The new field `value2` is calculated and used in evaluating `inv_value2` but is discarded before the point is sent on to child nodes. The resulting point has only two fields: `value` and `inv_value2`.
tick:property
func (*EvalNode) Last ¶ added in v0.11.0
func (n *EvalNode) Last(field string) *InfluxQLNode
Select the last point.
func (*EvalNode) Log ¶ added in v0.11.0
func (n *EvalNode) Log() *LogNode
Create a node that logs all data it receives.
func (*EvalNode) Max ¶ added in v0.11.0
func (n *EvalNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*EvalNode) Mean ¶ added in v0.11.0
func (n *EvalNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*EvalNode) Median ¶ added in v0.11.0
func (n *EvalNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*EvalNode) Min ¶ added in v0.11.0
func (n *EvalNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*EvalNode) Mode ¶ added in v1.0.0
func (n *EvalNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*EvalNode) MovingAverage ¶ added in v1.0.0
func (n *EvalNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*EvalNode) Percentile ¶ added in v0.11.0
func (n *EvalNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*EvalNode) Sample ¶
func (n *EvalNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*EvalNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*EvalNode) Spread ¶ added in v0.11.0
func (n *EvalNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*EvalNode) Stddev ¶ added in v0.11.0
func (n *EvalNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*EvalNode) Sum ¶ added in v0.11.0
func (n *EvalNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*EvalNode) Tags ¶ added in v1.0.0
Convert the result of an expression into a tag. The result must be a string. Use the `string()` expression function to convert types.
Example:
stream |eval(lambda: string(floor("value" / 10.0))) .as('value_bucket') .tags('value_bucket')
The above example calculates an expression from the field `value`, casts it as a string, and names it `value_bucket`. The `value_bucket` expression is then converted from a field on the point to a tag `value_bucket` on the point.
Example:
stream |eval(lambda: string(floor("value" / 10.0))) .as('value_bucket') .tags('value_bucket') .keep('value') // keep the original field `value` as well
The above example calculates an expression from the field `value`, casts it as a string, and names it `value_bucket`. The `value_bucket` expression is then converted from a field on the point to a tag `value_bucket` on the point. The `keep` property preserves the original field `value`. Tags are always kept since creating a tag implies you want to keep it.
tick:property
func (*EvalNode) Top ¶ added in v0.11.0
func (n *EvalNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*EvalNode) Where ¶
func (n *EvalNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*EvalNode) Window ¶
func (n *EvalNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type ExecHandler ¶ added in v0.2.4
tick:embedded:AlertNode.Exec
func (ExecHandler) Alert ¶ added in v0.13.0
func (n ExecHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (ExecHandler) Bottom ¶ added in v0.13.0
func (n ExecHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (ExecHandler) Combine ¶ added in v1.0.0
func (n ExecHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (ExecHandler) Count ¶ added in v0.13.0
func (n ExecHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (ExecHandler) Default ¶ added in v0.13.0
func (n ExecHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (ExecHandler) Delete ¶ added in v1.0.0
func (n ExecHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (ExecHandler) Derivative ¶ added in v0.13.0
func (n ExecHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (ExecHandler) Difference ¶ added in v1.0.0
func (n ExecHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (ExecHandler) Distinct ¶ added in v0.13.0
func (n ExecHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (ExecHandler) Elapsed ¶ added in v0.13.0
func (n ExecHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (ExecHandler) Eval ¶ added in v0.13.0
func (n ExecHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (ExecHandler) First ¶ added in v0.13.0
func (n ExecHandler) First(field string) *InfluxQLNode
Select the first point.
func (ExecHandler) Flatten ¶ added in v1.0.0
func (n ExecHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (ExecHandler) GroupBy ¶ added in v0.13.0
func (n ExecHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (ExecHandler) HoltWinters ¶ added in v1.0.0
func (n ExecHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (ExecHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n ExecHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (ExecHandler) HttpOut ¶ added in v0.13.0
func (n ExecHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (ExecHandler) InfluxDBOut ¶ added in v0.13.0
func (n ExecHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (ExecHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (ExecHandler) Last ¶ added in v0.13.0
func (n ExecHandler) Last(field string) *InfluxQLNode
Select the last point.
func (ExecHandler) Max ¶ added in v0.13.0
func (n ExecHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (ExecHandler) Mean ¶ added in v0.13.0
func (n ExecHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (ExecHandler) Median ¶ added in v0.13.0
func (n ExecHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (ExecHandler) Min ¶ added in v0.13.0
func (n ExecHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (ExecHandler) Mode ¶ added in v1.0.0
func (n ExecHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (ExecHandler) MovingAverage ¶ added in v1.0.0
func (n ExecHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (ExecHandler) Percentile ¶ added in v0.13.0
func (n ExecHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (ExecHandler) Sample ¶ added in v0.13.0
func (n ExecHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (ExecHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (ExecHandler) Spread ¶ added in v0.13.0
func (n ExecHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (ExecHandler) Stddev ¶ added in v0.13.0
func (n ExecHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (ExecHandler) Sum ¶ added in v0.13.0
func (n ExecHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (ExecHandler) Top ¶ added in v0.13.0
func (n ExecHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (ExecHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (ExecHandler) Where ¶ added in v0.13.0
func (n ExecHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (ExecHandler) Window ¶ added in v0.13.0
func (n ExecHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type FlattenNode ¶ added in v1.0.0
type FlattenNode struct { // The dimensions on which to join // tick:ignore Dimensions []string `tick:"On"` // The delimiter between field name parts Delimiter string // The maximum duration of time that two incoming points // can be apart and still be considered to be equal in time. // The joined data point's time will be rounded to the nearest // multiple of the tolerance duration. Tolerance time.Duration // contains filtered or unexported fields }
Flatten a set of points on specific dimensions. For example given two points:
m,host=A,port=80 bytes=3512 m,host=A,port=443 bytes=6723
Flattening the points on `port` would result in a single point:
m,host=A 80.bytes=3512,443.bytes=6723
Example:
|flatten() .on('port')
If flattening on multiple dimensions the order is preserved:
m,host=A,port=80 bytes=3512 m,host=A,port=443 bytes=6723 m,host=B,port=443 bytes=7243
Flattening the points on `host` and `port` would result in a single point:
m A.80.bytes=3512,A.443.bytes=6723,B.443.bytes=7243
Example:
|flatten() .on('host', 'port')
Since flattening points creates dynamically named fields in general it is expected that the resultant data is passed to a UDF or similar for custom processing.
func (*FlattenNode) Alert ¶ added in v1.0.0
func (n *FlattenNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*FlattenNode) Bottom ¶ added in v1.0.0
func (n *FlattenNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*FlattenNode) Combine ¶ added in v1.0.0
func (n *FlattenNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*FlattenNode) Count ¶ added in v1.0.0
func (n *FlattenNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*FlattenNode) Default ¶ added in v1.0.0
func (n *FlattenNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*FlattenNode) Delete ¶ added in v1.0.0
func (n *FlattenNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*FlattenNode) Derivative ¶ added in v1.0.0
func (n *FlattenNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*FlattenNode) Difference ¶ added in v1.0.0
func (n *FlattenNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*FlattenNode) Distinct ¶ added in v1.0.0
func (n *FlattenNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*FlattenNode) Elapsed ¶ added in v1.0.0
func (n *FlattenNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*FlattenNode) Eval ¶ added in v1.0.0
func (n *FlattenNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*FlattenNode) First ¶ added in v1.0.0
func (n *FlattenNode) First(field string) *InfluxQLNode
Select the first point.
func (*FlattenNode) Flatten ¶ added in v1.0.0
func (n *FlattenNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*FlattenNode) GroupBy ¶ added in v1.0.0
func (n *FlattenNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*FlattenNode) HoltWinters ¶ added in v1.0.0
func (n *FlattenNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*FlattenNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *FlattenNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*FlattenNode) HttpOut ¶ added in v1.0.0
func (n *FlattenNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*FlattenNode) InfluxDBOut ¶ added in v1.0.0
func (n *FlattenNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*FlattenNode) Join ¶ added in v1.0.0
Join this node with other nodes. The data are joined on timestamp.
func (*FlattenNode) Last ¶ added in v1.0.0
func (n *FlattenNode) Last(field string) *InfluxQLNode
Select the last point.
func (*FlattenNode) Log ¶ added in v1.0.0
func (n *FlattenNode) Log() *LogNode
Create a node that logs all data it receives.
func (*FlattenNode) Max ¶ added in v1.0.0
func (n *FlattenNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*FlattenNode) Mean ¶ added in v1.0.0
func (n *FlattenNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*FlattenNode) Median ¶ added in v1.0.0
func (n *FlattenNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*FlattenNode) Min ¶ added in v1.0.0
func (n *FlattenNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*FlattenNode) Mode ¶ added in v1.0.0
func (n *FlattenNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*FlattenNode) MovingAverage ¶ added in v1.0.0
func (n *FlattenNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*FlattenNode) On ¶ added in v1.0.0
func (f *FlattenNode) On(dims ...string) *FlattenNode
Specify the dimensions on which to flatten the points. tick:property
func (*FlattenNode) Percentile ¶ added in v1.0.0
func (n *FlattenNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*FlattenNode) Sample ¶ added in v1.0.0
func (n *FlattenNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*FlattenNode) Shift ¶ added in v1.0.0
Create a new node that shifts the incoming points or batches in time.
func (*FlattenNode) Spread ¶ added in v1.0.0
func (n *FlattenNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*FlattenNode) Stddev ¶ added in v1.0.0
func (n *FlattenNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*FlattenNode) Sum ¶ added in v1.0.0
func (n *FlattenNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*FlattenNode) Top ¶ added in v1.0.0
func (n *FlattenNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*FlattenNode) Union ¶ added in v1.0.0
Perform the union of this node and all other given nodes.
func (*FlattenNode) Where ¶ added in v1.0.0
func (n *FlattenNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*FlattenNode) Window ¶ added in v1.0.0
func (n *FlattenNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type FloatBulkPointAggregator ¶ added in v0.11.0
type FloatBulkPointAggregator interface { influxql.FloatPointAggregator influxql.FloatBulkPointAggregator }
type FromNode ¶ added in v0.13.0
type FromNode struct { // An expression to filter the data stream. // tick:ignore Lambda *ast.LambdaNode `tick:"Where"` // The dimensions by which to group to the data. // tick:ignore Dimensions []interface{} `tick:"GroupBy"` // Whether to include the measurement in the group ID. // tick:ignore GroupByMeasurementFlag bool `tick:"GroupByMeasurement"` // The database name. // If empty any database will be used. Database string // The retention policy name // If empty any retention policy will be used. RetentionPolicy string // The measurement name // If empty any measurement will be used. Measurement string // Optional duration for truncating timestamps. // Helpful to ensure data points land on specific boundaries // Example: // stream // |from() // .measurement('mydata') // .truncate(1s) // // All incoming data will be truncated to 1 second resolution. Truncate time.Duration // Optional duration for rounding timestamps. // Helpful to ensure data points land on specific boundaries // Example: // stream // |from() // .measurement('mydata') // .round(1s) // // All incoming data will be rounded to the nearest 1 second boundary. Round time.Duration // contains filtered or unexported fields }
A FromNode selects a subset of the data flowing through a StreamNode. The stream node allows you to select which portion of the stream you want to process.
Example:
stream |from() .database('mydb') .retentionPolicy('myrp') .measurement('mymeasurement') .where(lambda: "host" =~ /logger\d+/) |window() ...
The above example selects only data points from the database `mydb` and retention policy `myrp` and measurement `mymeasurement` where the tag `host` matches the regex `logger\d+`
func (*FromNode) Alert ¶ added in v0.13.0
func (n *FromNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*FromNode) Bottom ¶ added in v0.13.0
func (n *FromNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*FromNode) ChainMethods ¶ added in v0.13.0
func (*FromNode) Combine ¶ added in v1.0.0
func (n *FromNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*FromNode) Count ¶ added in v0.13.0
func (n *FromNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*FromNode) Default ¶ added in v0.13.0
func (n *FromNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*FromNode) Delete ¶ added in v1.0.0
func (n *FromNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*FromNode) Derivative ¶ added in v0.13.0
func (n *FromNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*FromNode) Difference ¶ added in v1.0.0
func (n *FromNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*FromNode) Distinct ¶ added in v0.13.0
func (n *FromNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*FromNode) Elapsed ¶ added in v0.13.0
func (n *FromNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*FromNode) Eval ¶ added in v0.13.0
func (n *FromNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*FromNode) First ¶ added in v0.13.0
func (n *FromNode) First(field string) *InfluxQLNode
Select the first point.
func (*FromNode) Flatten ¶ added in v1.0.0
func (n *FromNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*FromNode) From ¶ added in v0.13.0
Creates a new stream node that can be further filtered using the Database, RetentionPolicy, Measurement and Where properties. From can be called multiple times to create multiple independent forks of the data stream.
Example:
// Select the 'cpu' measurement from just the database 'mydb' // and retention policy 'myrp'. var cpu = stream |from() .database('mydb') .retentionPolicy('myrp') .measurement('cpu') // Select the 'load' measurement from any database and retention policy. var load = stream |from() .measurement('load') // Join cpu and load streams and do further processing. cpu |join(load) .as('cpu', 'load') ...
func (*FromNode) GroupBy ¶ added in v0.13.0
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
stream |from() .groupBy(*)
tick:property
func (*FromNode) GroupByMeasurement ¶ added in v1.0.0
If set will include the measurement name in the group ID. Along with any other group by dimensions.
Example: stream
|from() .database('mydb') .groupByMeasurement() .groupBy('host')
The above example selects all measurements from the database 'mydb' and then each point is grouped by the host tag and measurement name. Thus keeping measurements in their own groups. tick:property
func (*FromNode) HoltWinters ¶ added in v1.0.0
func (n *FromNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*FromNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *FromNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*FromNode) HttpOut ¶ added in v0.13.0
func (n *FromNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*FromNode) InfluxDBOut ¶ added in v0.13.0
func (n *FromNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*FromNode) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (*FromNode) Last ¶ added in v0.13.0
func (n *FromNode) Last(field string) *InfluxQLNode
Select the last point.
func (*FromNode) Log ¶ added in v0.13.0
func (n *FromNode) Log() *LogNode
Create a node that logs all data it receives.
func (*FromNode) Max ¶ added in v0.13.0
func (n *FromNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*FromNode) Mean ¶ added in v0.13.0
func (n *FromNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*FromNode) Median ¶ added in v0.13.0
func (n *FromNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*FromNode) Min ¶ added in v0.13.0
func (n *FromNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*FromNode) Mode ¶ added in v1.0.0
func (n *FromNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*FromNode) MovingAverage ¶ added in v1.0.0
func (n *FromNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*FromNode) Percentile ¶ added in v0.13.0
func (n *FromNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*FromNode) Sample ¶ added in v0.13.0
func (n *FromNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*FromNode) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (*FromNode) Spread ¶ added in v0.13.0
func (n *FromNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*FromNode) Stddev ¶ added in v0.13.0
func (n *FromNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*FromNode) Sum ¶ added in v0.13.0
func (n *FromNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*FromNode) Top ¶ added in v0.13.0
func (n *FromNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*FromNode) Where ¶ added in v0.13.0
func (s *FromNode) Where(lambda *ast.LambdaNode) *FromNode
Filter the current stream using the given expression. This expression is a Kapacitor expression. Kapacitor expressions are a superset of InfluxQL WHERE expressions. See the [expression](https://docs.influxdata.com/kapacitor/latest/tick/expr/) docs for more information.
Multiple calls to the Where method will `AND` together each expression.
Example:
stream |from() .where(lambda: condition1) .where(lambda: condition2)
The above is equivalent to this Example:
stream |from() .where(lambda: condition1 AND condition2)
NOTE: Becareful to always use `|from` if you want multiple different streams.
Example:
var data = stream |from() .measurement('cpu') var total = data .where(lambda: "cpu" == 'cpu-total') var others = data .where(lambda: "cpu" != 'cpu-total')
The example above is equivalent to the example below, which is obviously not what was intended.
Example:
var data = stream |from() .measurement('cpu') .where(lambda: "cpu" == 'cpu-total' AND "cpu" != 'cpu-total') var total = data var others = total
The example below will create two different streams each selecting a different subset of the original stream.
Example:
var data = stream |from() .measurement('cpu') var total = stream |from() .measurement('cpu') .where(lambda: "cpu" == 'cpu-total') var others = stream |from() .measurement('cpu') .where(lambda: "cpu" != 'cpu-total')
If empty then all data points are considered to match. tick:property
func (*FromNode) Window ¶ added in v0.13.0
func (n *FromNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type GroupByNode ¶
type GroupByNode struct { //The dimensions by which to group to the data. // tick:ignore Dimensions []interface{} // Whether to include the measurement in the group ID. // tick:ignore ByMeasurementFlag bool `tick:"ByMeasurement"` // contains filtered or unexported fields }
A GroupByNode will group the incoming data. Each group is then processed independently for the rest of the pipeline. Only tags that are dimensions in the grouping will be preserved; all other tags are dropped.
Example:
stream |groupBy('service', 'datacenter') ...
The above example groups the data along two dimensions `service` and `datacenter`. Groups are dynamically created as new data arrives and each group is processed independently.
func (*GroupByNode) Alert ¶
func (n *GroupByNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*GroupByNode) Bottom ¶ added in v0.11.0
func (n *GroupByNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*GroupByNode) ByMeasurement ¶ added in v1.0.0
func (n *GroupByNode) ByMeasurement() *GroupByNode
If set will include the measurement name in the group ID. Along with any other group by dimensions.
Example:
... |groupBy('host') .byMeasurement()
The above example groups points by their host tag and measurement name.
If you want to remove the measurement name from the group ID, then groupBy all existing dimensions but without specifying 'byMeasurement'.
Example:
|groupBy(*)
The above removes the group by measurement name if any. tick:property
func (*GroupByNode) Combine ¶ added in v1.0.0
func (n *GroupByNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*GroupByNode) Count ¶ added in v0.11.0
func (n *GroupByNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*GroupByNode) Default ¶ added in v0.13.0
func (n *GroupByNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*GroupByNode) Delete ¶ added in v1.0.0
func (n *GroupByNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*GroupByNode) Derivative ¶
func (n *GroupByNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*GroupByNode) Difference ¶ added in v1.0.0
func (n *GroupByNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*GroupByNode) Distinct ¶ added in v0.11.0
func (n *GroupByNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*GroupByNode) Elapsed ¶ added in v0.13.0
func (n *GroupByNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*GroupByNode) Eval ¶
func (n *GroupByNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*GroupByNode) First ¶ added in v0.11.0
func (n *GroupByNode) First(field string) *InfluxQLNode
Select the first point.
func (*GroupByNode) Flatten ¶ added in v1.0.0
func (n *GroupByNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*GroupByNode) GroupBy ¶
func (n *GroupByNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*GroupByNode) HoltWinters ¶ added in v1.0.0
func (n *GroupByNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*GroupByNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *GroupByNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*GroupByNode) HttpOut ¶
func (n *GroupByNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*GroupByNode) InfluxDBOut ¶
func (n *GroupByNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*GroupByNode) Last ¶ added in v0.11.0
func (n *GroupByNode) Last(field string) *InfluxQLNode
Select the last point.
func (*GroupByNode) Log ¶ added in v0.11.0
func (n *GroupByNode) Log() *LogNode
Create a node that logs all data it receives.
func (*GroupByNode) Max ¶ added in v0.11.0
func (n *GroupByNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*GroupByNode) Mean ¶ added in v0.11.0
func (n *GroupByNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*GroupByNode) Median ¶ added in v0.11.0
func (n *GroupByNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*GroupByNode) Min ¶ added in v0.11.0
func (n *GroupByNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*GroupByNode) Mode ¶ added in v1.0.0
func (n *GroupByNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*GroupByNode) MovingAverage ¶ added in v1.0.0
func (n *GroupByNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*GroupByNode) Percentile ¶ added in v0.11.0
func (n *GroupByNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*GroupByNode) Sample ¶
func (n *GroupByNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*GroupByNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*GroupByNode) Spread ¶ added in v0.11.0
func (n *GroupByNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*GroupByNode) Stddev ¶ added in v0.11.0
func (n *GroupByNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*GroupByNode) Sum ¶ added in v0.11.0
func (n *GroupByNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*GroupByNode) Top ¶ added in v0.11.0
func (n *GroupByNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*GroupByNode) Where ¶
func (n *GroupByNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*GroupByNode) Window ¶
func (n *GroupByNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type HTTPOutNode ¶
type HTTPOutNode struct { // The relative path where the cached data is exposed // tick:ignore Endpoint string // contains filtered or unexported fields }
An HTTPOutNode caches the most recent data for each group it has received.
The cached data is available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
Example:
stream |window() .period(10s) .every(5s) |top('value', 10) //Publish the top 10 results over the last 10s updated every 5s. |httpOut('top10')
func (*HTTPOutNode) Alert ¶ added in v0.11.0
func (n *HTTPOutNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*HTTPOutNode) Bottom ¶ added in v0.11.0
func (n *HTTPOutNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*HTTPOutNode) Combine ¶ added in v1.0.0
func (n *HTTPOutNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*HTTPOutNode) Count ¶ added in v0.11.0
func (n *HTTPOutNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*HTTPOutNode) Default ¶ added in v0.13.0
func (n *HTTPOutNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*HTTPOutNode) Delete ¶ added in v1.0.0
func (n *HTTPOutNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*HTTPOutNode) Derivative ¶ added in v0.11.0
func (n *HTTPOutNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*HTTPOutNode) Difference ¶ added in v1.0.0
func (n *HTTPOutNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*HTTPOutNode) Distinct ¶ added in v0.11.0
func (n *HTTPOutNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*HTTPOutNode) Elapsed ¶ added in v0.13.0
func (n *HTTPOutNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*HTTPOutNode) Eval ¶ added in v0.11.0
func (n *HTTPOutNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*HTTPOutNode) First ¶ added in v0.11.0
func (n *HTTPOutNode) First(field string) *InfluxQLNode
Select the first point.
func (*HTTPOutNode) Flatten ¶ added in v1.0.0
func (n *HTTPOutNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*HTTPOutNode) GroupBy ¶ added in v0.11.0
func (n *HTTPOutNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*HTTPOutNode) HoltWinters ¶ added in v1.0.0
func (n *HTTPOutNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*HTTPOutNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *HTTPOutNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*HTTPOutNode) HttpOut ¶ added in v0.11.0
func (n *HTTPOutNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*HTTPOutNode) InfluxDBOut ¶ added in v0.11.0
func (n *HTTPOutNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*HTTPOutNode) Join ¶ added in v0.11.0
Join this node with other nodes. The data are joined on timestamp.
func (*HTTPOutNode) Last ¶ added in v0.11.0
func (n *HTTPOutNode) Last(field string) *InfluxQLNode
Select the last point.
func (*HTTPOutNode) Log ¶ added in v0.11.0
func (n *HTTPOutNode) Log() *LogNode
Create a node that logs all data it receives.
func (*HTTPOutNode) Max ¶ added in v0.11.0
func (n *HTTPOutNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*HTTPOutNode) Mean ¶ added in v0.11.0
func (n *HTTPOutNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*HTTPOutNode) Median ¶ added in v0.11.0
func (n *HTTPOutNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*HTTPOutNode) Min ¶ added in v0.11.0
func (n *HTTPOutNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*HTTPOutNode) Mode ¶ added in v1.0.0
func (n *HTTPOutNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*HTTPOutNode) MovingAverage ¶ added in v1.0.0
func (n *HTTPOutNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*HTTPOutNode) Percentile ¶ added in v0.11.0
func (n *HTTPOutNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*HTTPOutNode) Sample ¶ added in v0.11.0
func (n *HTTPOutNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*HTTPOutNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*HTTPOutNode) Spread ¶ added in v0.11.0
func (n *HTTPOutNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*HTTPOutNode) Stddev ¶ added in v0.11.0
func (n *HTTPOutNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*HTTPOutNode) Sum ¶ added in v0.11.0
func (n *HTTPOutNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*HTTPOutNode) Top ¶ added in v0.11.0
func (n *HTTPOutNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*HTTPOutNode) Union ¶ added in v0.11.0
Perform the union of this node and all other given nodes.
func (*HTTPOutNode) Where ¶ added in v0.11.0
func (n *HTTPOutNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*HTTPOutNode) Window ¶ added in v0.11.0
func (n *HTTPOutNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type HipChatHandler ¶ added in v0.2.4
type HipChatHandler struct { *AlertNode // HipChat room in which to post messages. // If empty uses the channel from the configuration. Room string // HipChat authentication token. // If empty uses the token from the configuration. Token string }
tick:embedded:AlertNode.HipChat
func (HipChatHandler) Alert ¶ added in v0.13.0
func (n HipChatHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (HipChatHandler) Bottom ¶ added in v0.13.0
func (n HipChatHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (HipChatHandler) Combine ¶ added in v1.0.0
func (n HipChatHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (HipChatHandler) Count ¶ added in v0.13.0
func (n HipChatHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (HipChatHandler) Default ¶ added in v0.13.0
func (n HipChatHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (HipChatHandler) Delete ¶ added in v1.0.0
func (n HipChatHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (HipChatHandler) Derivative ¶ added in v0.13.0
func (n HipChatHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (HipChatHandler) Difference ¶ added in v1.0.0
func (n HipChatHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (HipChatHandler) Distinct ¶ added in v0.13.0
func (n HipChatHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (HipChatHandler) Elapsed ¶ added in v0.13.0
func (n HipChatHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (HipChatHandler) Eval ¶ added in v0.13.0
func (n HipChatHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (HipChatHandler) First ¶ added in v0.13.0
func (n HipChatHandler) First(field string) *InfluxQLNode
Select the first point.
func (HipChatHandler) Flatten ¶ added in v1.0.0
func (n HipChatHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (HipChatHandler) GroupBy ¶ added in v0.13.0
func (n HipChatHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (HipChatHandler) HoltWinters ¶ added in v1.0.0
func (n HipChatHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (HipChatHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n HipChatHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (HipChatHandler) HttpOut ¶ added in v0.13.0
func (n HipChatHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (HipChatHandler) InfluxDBOut ¶ added in v0.13.0
func (n HipChatHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (HipChatHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (HipChatHandler) Last ¶ added in v0.13.0
func (n HipChatHandler) Last(field string) *InfluxQLNode
Select the last point.
func (HipChatHandler) Max ¶ added in v0.13.0
func (n HipChatHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (HipChatHandler) Mean ¶ added in v0.13.0
func (n HipChatHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (HipChatHandler) Median ¶ added in v0.13.0
func (n HipChatHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (HipChatHandler) Min ¶ added in v0.13.0
func (n HipChatHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (HipChatHandler) Mode ¶ added in v1.0.0
func (n HipChatHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (HipChatHandler) MovingAverage ¶ added in v1.0.0
func (n HipChatHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (HipChatHandler) Percentile ¶ added in v0.13.0
func (n HipChatHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (HipChatHandler) Sample ¶ added in v0.13.0
func (n HipChatHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (HipChatHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (HipChatHandler) Spread ¶ added in v0.13.0
func (n HipChatHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (HipChatHandler) Stddev ¶ added in v0.13.0
func (n HipChatHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (HipChatHandler) Sum ¶ added in v0.13.0
func (n HipChatHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (HipChatHandler) Top ¶ added in v0.13.0
func (n HipChatHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (HipChatHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (HipChatHandler) Where ¶ added in v0.13.0
func (n HipChatHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (HipChatHandler) Window ¶ added in v0.13.0
func (n HipChatHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type InfluxDBOutNode ¶
type InfluxDBOutNode struct { // The name of the InfluxDB instance to connect to. // If empty the configured default will be used. Cluster string // The name of the database. Database string // The name of the retention policy. RetentionPolicy string // The name of the measurement. Measurement string // The write consistency to use when writing the data. WriteConsistency string // The precision to use when writing the data. Precision string // Number of points to buffer when writing to InfluxDB. // Default: 1000 Buffer int64 // Write points to InfluxDB after interval even if buffer is not full. // Default: 10s FlushInterval time.Duration // Static set of tags to add to all data points before writing them. //tick:ignore Tags map[string]string `tick:"Tag"` // contains filtered or unexported fields }
Writes the data to InfluxDB as it is received.
Example:
stream |eval(lambda: "errors" / "total") .as('error_percent') // Write the transformed data to InfluxDB |influxDBOut() .database('mydb') .retentionPolicy('myrp') .measurement('errors') .tag('kapacitor', 'true') .tag('version', '0.2')
Available Statistics:
- points_written -- number of points written to InfluxDB
- write_errors -- number of errors attempting to write to InfluxDB
func (*InfluxDBOutNode) Deadman ¶ added in v0.10.0
func (n *InfluxDBOutNode) Deadman(threshold float64, interval time.Duration, expr ...*ast.LambdaNode) *AlertNode
Helper function for creating an alert on low throughput, a.k.a. deadman's switch.
- Threshold -- trigger alert if throughput drops below threshold in points/interval. - Interval -- how often to check the throughput. - Expressions -- optional list of expressions to also evaluate. Useful for time of day alerting.
Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |deadman(100.0, 10s) //Do normal processing of data data...
The above is equivalent to this Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |stats(10s) .align() |derivative('emitted') .unit(10s) .nonNegative() |alert() .id('node \'stream0\' in task \'{{ .TaskName }}\'') .message('{{ .ID }} is {{ if eq .Level "OK" }}alive{{ else }}dead{{ end }}: {{ index .Fields "emitted" | printf "%0.3f" }} points/10s.') .crit(lambda: "emitted" <= 100.0) //Do normal processing of data data...
The `id` and `message` alert properties can be configured globally via the 'deadman' configuration section.
Since the AlertNode is the last piece it can be further modified as usual. Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |deadman(100.0, 10s) .slack() .channel('#dead_tasks') //Do normal processing of data data...
You can specify additional lambda expressions to further constrain when the deadman's switch is triggered. Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. // Only trigger the alert if the time of day is between 8am-5pm. data |deadman(100.0, 10s, lambda: hour("time") >= 8 AND hour("time") <= 17) //Do normal processing of data data...
func (*InfluxDBOutNode) Stats ¶ added in v0.10.0
Create a new stream of data that contains the internal statistics of the node. The interval represents how often to emit the statistics based on real time. This means the interval time is independent of the times of the data points the source node is receiving.
func (*InfluxDBOutNode) Tag ¶
func (i *InfluxDBOutNode) Tag(key, value string) *InfluxDBOutNode
Add a static tag to all data points. Tag can be called more than once.
tick:property
type InfluxQLNode ¶ added in v0.11.0
type InfluxQLNode struct { // tick:ignore Method string // tick:ignore Field string // The name of the field, defaults to the name of // function used (i.e. .mean -> 'mean') As string // tick:ignore ReduceCreater ReduceCreater // tick:ignore PointTimes bool `tick:"UsePointTimes"` // contains filtered or unexported fields }
An InfluxQLNode performs the available function from the InfluxQL language. These function can be performed on a stream or batch edge. The resulting edge is dependent on the function. For a stream edge, all points with the same time are accumulated into the function. For a batch edge, all points in the batch are accumulated into the function.
Example:
stream |window() .period(10s) .every(10s) // Sum the values for each 10s window of data. |sum('value')
Note: Derivative has its own implementation as a DerivativeNode instead of as part of the InfluxQL functions.
func (*InfluxQLNode) Alert ¶ added in v0.11.0
func (n *InfluxQLNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*InfluxQLNode) Bottom ¶ added in v0.11.0
func (n *InfluxQLNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*InfluxQLNode) Combine ¶ added in v1.0.0
func (n *InfluxQLNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*InfluxQLNode) Count ¶ added in v0.11.0
func (n *InfluxQLNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*InfluxQLNode) Default ¶ added in v0.13.0
func (n *InfluxQLNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*InfluxQLNode) Delete ¶ added in v1.0.0
func (n *InfluxQLNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*InfluxQLNode) Derivative ¶ added in v0.11.0
func (n *InfluxQLNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*InfluxQLNode) Difference ¶ added in v1.0.0
func (n *InfluxQLNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*InfluxQLNode) Distinct ¶ added in v0.11.0
func (n *InfluxQLNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*InfluxQLNode) Elapsed ¶ added in v0.13.0
func (n *InfluxQLNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*InfluxQLNode) Eval ¶ added in v0.11.0
func (n *InfluxQLNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*InfluxQLNode) First ¶ added in v0.11.0
func (n *InfluxQLNode) First(field string) *InfluxQLNode
Select the first point.
func (*InfluxQLNode) Flatten ¶ added in v1.0.0
func (n *InfluxQLNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*InfluxQLNode) GroupBy ¶ added in v0.11.0
func (n *InfluxQLNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*InfluxQLNode) HoltWinters ¶ added in v1.0.0
func (n *InfluxQLNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*InfluxQLNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *InfluxQLNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*InfluxQLNode) HttpOut ¶ added in v0.11.0
func (n *InfluxQLNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*InfluxQLNode) InfluxDBOut ¶ added in v0.11.0
func (n *InfluxQLNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*InfluxQLNode) Join ¶ added in v0.11.0
Join this node with other nodes. The data are joined on timestamp.
func (*InfluxQLNode) Last ¶ added in v0.11.0
func (n *InfluxQLNode) Last(field string) *InfluxQLNode
Select the last point.
func (*InfluxQLNode) Log ¶ added in v0.11.0
func (n *InfluxQLNode) Log() *LogNode
Create a node that logs all data it receives.
func (*InfluxQLNode) Max ¶ added in v0.11.0
func (n *InfluxQLNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*InfluxQLNode) Mean ¶ added in v0.11.0
func (n *InfluxQLNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*InfluxQLNode) Median ¶ added in v0.11.0
func (n *InfluxQLNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*InfluxQLNode) Min ¶ added in v0.11.0
func (n *InfluxQLNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*InfluxQLNode) Mode ¶ added in v1.0.0
func (n *InfluxQLNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*InfluxQLNode) MovingAverage ¶ added in v1.0.0
func (n *InfluxQLNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*InfluxQLNode) Percentile ¶ added in v0.11.0
func (n *InfluxQLNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*InfluxQLNode) Sample ¶ added in v0.11.0
func (n *InfluxQLNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*InfluxQLNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*InfluxQLNode) Spread ¶ added in v0.11.0
func (n *InfluxQLNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*InfluxQLNode) Stddev ¶ added in v0.11.0
func (n *InfluxQLNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*InfluxQLNode) Sum ¶ added in v0.11.0
func (n *InfluxQLNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*InfluxQLNode) Top ¶ added in v0.11.0
func (n *InfluxQLNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*InfluxQLNode) Union ¶ added in v0.11.0
Perform the union of this node and all other given nodes.
func (*InfluxQLNode) UsePointTimes ¶ added in v0.11.0
func (n *InfluxQLNode) UsePointTimes() *InfluxQLNode
Use the time of the selected point instead of the time of the batch.
Only applies to selector functions like first, last, top, bottom, etc. Aggregation functions always use the batch time. tick:property
func (*InfluxQLNode) Where ¶ added in v0.11.0
func (n *InfluxQLNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*InfluxQLNode) Window ¶ added in v0.11.0
func (n *InfluxQLNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type IntegerBulkPointAggregator ¶ added in v0.11.0
type IntegerBulkPointAggregator interface { influxql.IntegerPointAggregator influxql.IntegerBulkPointAggregator }
type JoinNode ¶
type JoinNode struct { // The alias names of the two parents. // Note: // Names[1] corresponds to the left parent // Names[0] corresponds to the right parent // tick:ignore Names []string `tick:"As"` // The dimensions on which to join // tick:ignore Dimensions []string `tick:"On"` // The delimiter for the field name prefixes. // Can be the empty string. Delimiter string // The name of this new joined data stream. // If empty the name of the left parent is used. StreamName string // The maximum duration of time that two incoming points // can be apart and still be considered to be equal in time. // The joined data point's time will be rounded to the nearest // multiple of the tolerance duration. Tolerance time.Duration // Fill the data. // The fill option implies the type of join: inner or full outer // Options are: // // - none - (default) skip rows where a point is missing, inner join. // - null - fill missing points with null, full outer join. // - Any numerical value - fill fields with given value, full outer join. // // When using a numerical or null fill, the fields names are determined by copying // the field names from another point. // This doesn't work well when different sources have different field names. // Use the DefaultNode and DeleteNode to finalize the fill operation if necessary. // // Example: // var maintlock = stream // |from() // .measurement('maintlock') // .groupBy('service') // var requests = stream // |from() // .measurement('requests') // .groupBy('service') // // Join the maintlock and requests streams // // The intent it to drop any points in maintenance mode. // maintlock // |join(requests) // // Provide prefix names for the fields of the data points. // .as('maintlock', 'requests') // // points that are within 1 second are considered the same time. // .tolerance(1s) // // fill missing fields with null, implies outer join. // // a better default per field will be set later. // .fill('null') // // name the resulting stream. // .streamName('requests') // |default() // // default maintenance mode to false, overwriting the null value if present. // .field('maintlock.mode', false) // // default the requests to 0, again overwriting the null value if present. // .field('requests.value', 0.0) // // drop any points that are in maintenance mode. // |where(lambda: "maintlock.mode") // |... Fill interface{} // contains filtered or unexported fields }
Joins the data from any number of nodes. As each data point is received from a parent node it is paired with the next data points from the other parent nodes with a matching timestamp. Each parent node contributes at most one point to each joined point. A tolerance can be supplied to join points that do not have perfectly aligned timestamps. Any points that fall within the tolerance are joined on the timestamp. If multiple points fall within the same tolerance window than they are joined in the order they arrive.
Aliases are used to prefix all fields from the respective nodes.
The join can be an inner or outer join, see the JoinNode.Fill property.
Example:
var errors = stream |from() .measurement('errors') var requests = stream |from() .measurement('requests') // Join the errors and requests streams errors |join(requests) // Provide prefix names for the fields of the data points. .as('errors', 'requests') // points that are within 1 second are considered the same time. .tolerance(1s) // fill missing values with 0, implies outer join. .fill(0.0) // name the resulting stream .streamName('error_rate') // Both the "value" fields from each parent have been prefixed // with the respective names 'errors' and 'requests'. |eval(lambda: "errors.value" / "requests.value") .as('rate') ...
In the above example the `errors` and `requests` streams are joined and then transformed to calculate a combined field.
func (*JoinNode) Alert ¶
func (n *JoinNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*JoinNode) As ¶
Prefix names for all fields from the respective nodes. Each field from the parent nodes will be prefixed with the provided name and a '.'. See the example above.
The names cannot have a dot '.' character.
tick:property
func (*JoinNode) Bottom ¶ added in v0.11.0
func (n *JoinNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*JoinNode) Combine ¶ added in v1.0.0
func (n *JoinNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*JoinNode) Count ¶ added in v0.11.0
func (n *JoinNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*JoinNode) Default ¶ added in v0.13.0
func (n *JoinNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*JoinNode) Delete ¶ added in v1.0.0
func (n *JoinNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*JoinNode) Derivative ¶
func (n *JoinNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*JoinNode) Difference ¶ added in v1.0.0
func (n *JoinNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*JoinNode) Distinct ¶ added in v0.11.0
func (n *JoinNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*JoinNode) Elapsed ¶ added in v0.13.0
func (n *JoinNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*JoinNode) Eval ¶
func (n *JoinNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*JoinNode) First ¶ added in v0.11.0
func (n *JoinNode) First(field string) *InfluxQLNode
Select the first point.
func (*JoinNode) Flatten ¶ added in v1.0.0
func (n *JoinNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*JoinNode) GroupBy ¶
func (n *JoinNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*JoinNode) HoltWinters ¶ added in v1.0.0
func (n *JoinNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*JoinNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *JoinNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*JoinNode) HttpOut ¶
func (n *JoinNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*JoinNode) InfluxDBOut ¶
func (n *JoinNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*JoinNode) Last ¶ added in v0.11.0
func (n *JoinNode) Last(field string) *InfluxQLNode
Select the last point.
func (*JoinNode) Log ¶ added in v0.11.0
func (n *JoinNode) Log() *LogNode
Create a node that logs all data it receives.
func (*JoinNode) Max ¶ added in v0.11.0
func (n *JoinNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*JoinNode) Mean ¶ added in v0.11.0
func (n *JoinNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*JoinNode) Median ¶ added in v0.11.0
func (n *JoinNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*JoinNode) Min ¶ added in v0.11.0
func (n *JoinNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*JoinNode) Mode ¶ added in v1.0.0
func (n *JoinNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*JoinNode) MovingAverage ¶ added in v1.0.0
func (n *JoinNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*JoinNode) On ¶ added in v0.11.0
Join on a subset of the group by dimensions. This is a special case where you want a single point from one parent to join with multiple points from a different parent.
For example given two measurements:
1. building_power (a single value) -- tagged by building, value is the total power consumed by the building. 2. floor_power (multiple values) -- tagged by building and floor, values are the total power consumed by each floor.
You want to calculate the percentage of the total building power consumed by each floor. Since you only have one point per building you need it to join multiple times with the points from each floor. By defining the `on` dimensions as `building` we are saying that we want points that only have the building tag to be joined with more specifc points that more tags, in this case the `floor` tag. In other words while we have points with tags building and floor we only want to join on the building tag.
Example:
var building = stream |from() .measurement('building_power') .groupBy('building') var floor = stream |from() .measurement('floor_power') .groupBy('building', 'floor') building |join(floor) .as('building', 'floor') .on('building') |eval(lambda: "floor.value" / "building.value") ... // Values here are grouped by 'building' and 'floor'
tick:property
func (*JoinNode) Percentile ¶ added in v0.11.0
func (n *JoinNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*JoinNode) Sample ¶
func (n *JoinNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*JoinNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*JoinNode) Spread ¶ added in v0.11.0
func (n *JoinNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*JoinNode) Stddev ¶ added in v0.11.0
func (n *JoinNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*JoinNode) Sum ¶ added in v0.11.0
func (n *JoinNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*JoinNode) Top ¶ added in v0.11.0
func (n *JoinNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*JoinNode) Where ¶
func (n *JoinNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*JoinNode) Window ¶
func (n *JoinNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type LogHandler ¶ added in v0.2.4
type LogHandler struct { *AlertNode // Absolute path the the log file. // It will be created if it does not exist. // tick:ignore FilePath string // File's mode and permissions, default is 0600 // NOTE: The leading 0 is required to interpret the value as an octal integer. Mode int64 }
tick:embedded:AlertNode.Log
func (LogHandler) Alert ¶ added in v0.13.0
func (n LogHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (LogHandler) Bottom ¶ added in v0.13.0
func (n LogHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (LogHandler) Combine ¶ added in v1.0.0
func (n LogHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (LogHandler) Count ¶ added in v0.13.0
func (n LogHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (LogHandler) Default ¶ added in v0.13.0
func (n LogHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (LogHandler) Delete ¶ added in v1.0.0
func (n LogHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (LogHandler) Derivative ¶ added in v0.13.0
func (n LogHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (LogHandler) Difference ¶ added in v1.0.0
func (n LogHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (LogHandler) Distinct ¶ added in v0.13.0
func (n LogHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (LogHandler) Elapsed ¶ added in v0.13.0
func (n LogHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (LogHandler) Eval ¶ added in v0.13.0
func (n LogHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (LogHandler) First ¶ added in v0.13.0
func (n LogHandler) First(field string) *InfluxQLNode
Select the first point.
func (LogHandler) Flatten ¶ added in v1.0.0
func (n LogHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (LogHandler) GroupBy ¶ added in v0.13.0
func (n LogHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (LogHandler) HoltWinters ¶ added in v1.0.0
func (n LogHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (LogHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n LogHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (LogHandler) HttpOut ¶ added in v0.13.0
func (n LogHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (LogHandler) InfluxDBOut ¶ added in v0.13.0
func (n LogHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (LogHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (LogHandler) Last ¶ added in v0.13.0
func (n LogHandler) Last(field string) *InfluxQLNode
Select the last point.
func (LogHandler) Max ¶ added in v0.13.0
func (n LogHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (LogHandler) Mean ¶ added in v0.13.0
func (n LogHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (LogHandler) Median ¶ added in v0.13.0
func (n LogHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (LogHandler) Min ¶ added in v0.13.0
func (n LogHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (LogHandler) Mode ¶ added in v0.12.0
func (n LogHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (LogHandler) MovingAverage ¶ added in v1.0.0
func (n LogHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (LogHandler) Percentile ¶ added in v0.13.0
func (n LogHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (LogHandler) Sample ¶ added in v0.13.0
func (n LogHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (LogHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (LogHandler) Spread ¶ added in v0.13.0
func (n LogHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (LogHandler) Stddev ¶ added in v0.13.0
func (n LogHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (LogHandler) Sum ¶ added in v0.13.0
func (n LogHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (LogHandler) Top ¶ added in v0.13.0
func (n LogHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (LogHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (LogHandler) Where ¶ added in v0.13.0
func (n LogHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (LogHandler) Window ¶ added in v0.13.0
func (n LogHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type LogNode ¶ added in v0.11.0
type LogNode struct { // The level at which to log the data. // One of: DEBUG, INFO, WARN, ERROR // Default: INFO Level string // Optional prefix to add to all log messages Prefix string // contains filtered or unexported fields }
A node that logs all data that passes through the node.
Example:
stream.from()... |window() .period(10s) .every(10s) |log() |count('value')
func (*LogNode) Alert ¶ added in v0.11.0
func (n *LogNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*LogNode) Bottom ¶ added in v0.11.0
func (n *LogNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*LogNode) Combine ¶ added in v1.0.0
func (n *LogNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*LogNode) Count ¶ added in v0.11.0
func (n *LogNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*LogNode) Default ¶ added in v0.13.0
func (n *LogNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*LogNode) Delete ¶ added in v1.0.0
func (n *LogNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*LogNode) Derivative ¶ added in v0.11.0
func (n *LogNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*LogNode) Difference ¶ added in v1.0.0
func (n *LogNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*LogNode) Distinct ¶ added in v0.11.0
func (n *LogNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*LogNode) Elapsed ¶ added in v0.13.0
func (n *LogNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*LogNode) Eval ¶ added in v0.11.0
func (n *LogNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*LogNode) First ¶ added in v0.11.0
func (n *LogNode) First(field string) *InfluxQLNode
Select the first point.
func (*LogNode) Flatten ¶ added in v1.0.0
func (n *LogNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*LogNode) GroupBy ¶ added in v0.11.0
func (n *LogNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*LogNode) HoltWinters ¶ added in v1.0.0
func (n *LogNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*LogNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *LogNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*LogNode) HttpOut ¶ added in v0.11.0
func (n *LogNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*LogNode) InfluxDBOut ¶ added in v0.11.0
func (n *LogNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*LogNode) Join ¶ added in v0.11.0
Join this node with other nodes. The data are joined on timestamp.
func (*LogNode) Last ¶ added in v0.11.0
func (n *LogNode) Last(field string) *InfluxQLNode
Select the last point.
func (*LogNode) Log ¶ added in v0.11.0
func (n *LogNode) Log() *LogNode
Create a node that logs all data it receives.
func (*LogNode) Max ¶ added in v0.11.0
func (n *LogNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*LogNode) Mean ¶ added in v0.11.0
func (n *LogNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*LogNode) Median ¶ added in v0.11.0
func (n *LogNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*LogNode) Min ¶ added in v0.11.0
func (n *LogNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*LogNode) Mode ¶ added in v1.0.0
func (n *LogNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*LogNode) MovingAverage ¶ added in v1.0.0
func (n *LogNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*LogNode) Percentile ¶ added in v0.11.0
func (n *LogNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*LogNode) Sample ¶ added in v0.11.0
func (n *LogNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*LogNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*LogNode) Spread ¶ added in v0.11.0
func (n *LogNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*LogNode) Stddev ¶ added in v0.11.0
func (n *LogNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*LogNode) Sum ¶ added in v0.11.0
func (n *LogNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*LogNode) Top ¶ added in v0.11.0
func (n *LogNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*LogNode) Where ¶ added in v0.11.0
func (n *LogNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*LogNode) Window ¶ added in v0.11.0
func (n *LogNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type NoOpNode ¶ added in v0.11.0
type NoOpNode struct {
// contains filtered or unexported fields
}
A node that does not perform any operation.
*Do not use this node in a TICKscript there should be no need for it.*
If a node does not have any children, then its emitted count remains zero. Using a NoOpNode is a work around so that statistics are accurately reported for nodes with no real children. A NoOpNode is automatically appended to any node that is a source for a StatsNode and does not have any children.
func (*NoOpNode) Alert ¶ added in v0.11.0
func (n *NoOpNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*NoOpNode) Bottom ¶ added in v0.11.0
func (n *NoOpNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*NoOpNode) Combine ¶ added in v1.0.0
func (n *NoOpNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*NoOpNode) Count ¶ added in v0.11.0
func (n *NoOpNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*NoOpNode) Default ¶ added in v0.13.0
func (n *NoOpNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*NoOpNode) Delete ¶ added in v1.0.0
func (n *NoOpNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*NoOpNode) Derivative ¶ added in v0.11.0
func (n *NoOpNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*NoOpNode) Difference ¶ added in v1.0.0
func (n *NoOpNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*NoOpNode) Distinct ¶ added in v0.11.0
func (n *NoOpNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*NoOpNode) Elapsed ¶ added in v0.13.0
func (n *NoOpNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*NoOpNode) Eval ¶ added in v0.11.0
func (n *NoOpNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*NoOpNode) First ¶ added in v0.11.0
func (n *NoOpNode) First(field string) *InfluxQLNode
Select the first point.
func (*NoOpNode) Flatten ¶ added in v1.0.0
func (n *NoOpNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*NoOpNode) GroupBy ¶ added in v0.11.0
func (n *NoOpNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*NoOpNode) HoltWinters ¶ added in v1.0.0
func (n *NoOpNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*NoOpNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *NoOpNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*NoOpNode) HttpOut ¶ added in v0.11.0
func (n *NoOpNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*NoOpNode) InfluxDBOut ¶ added in v0.11.0
func (n *NoOpNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*NoOpNode) Join ¶ added in v0.11.0
Join this node with other nodes. The data are joined on timestamp.
func (*NoOpNode) Last ¶ added in v0.11.0
func (n *NoOpNode) Last(field string) *InfluxQLNode
Select the last point.
func (*NoOpNode) Log ¶ added in v0.11.0
func (n *NoOpNode) Log() *LogNode
Create a node that logs all data it receives.
func (*NoOpNode) Max ¶ added in v0.11.0
func (n *NoOpNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*NoOpNode) Mean ¶ added in v0.11.0
func (n *NoOpNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*NoOpNode) Median ¶ added in v0.11.0
func (n *NoOpNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*NoOpNode) Min ¶ added in v0.11.0
func (n *NoOpNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*NoOpNode) Mode ¶ added in v1.0.0
func (n *NoOpNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*NoOpNode) MovingAverage ¶ added in v1.0.0
func (n *NoOpNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*NoOpNode) Percentile ¶ added in v0.11.0
func (n *NoOpNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*NoOpNode) Sample ¶ added in v0.11.0
func (n *NoOpNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*NoOpNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*NoOpNode) Spread ¶ added in v0.11.0
func (n *NoOpNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*NoOpNode) Stddev ¶ added in v0.11.0
func (n *NoOpNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*NoOpNode) Sum ¶ added in v0.11.0
func (n *NoOpNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*NoOpNode) Top ¶ added in v0.11.0
func (n *NoOpNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*NoOpNode) Where ¶ added in v0.11.0
func (n *NoOpNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*NoOpNode) Window ¶ added in v0.11.0
func (n *NoOpNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type Node ¶
type Node interface { // List of parents of this node. Parents() []Node // List of children of this node. Children() []Node // Short description of the node does not need to be unique Desc() string // Friendly readable unique name of the node Name() string SetName(string) // Unique id for the node ID() ID // The type of input the node wants. Wants() EdgeType // The type of output the node provides. Provides() EdgeType // contains filtered or unexported methods }
Generic node in a pipeline
type OpsGenieHandler ¶ added in v0.2.4
type OpsGenieHandler struct { *AlertNode // OpsGenie Teams. // tick:ignore TeamsList []string `tick:"Teams"` // OpsGenie Recipients. // tick:ignore RecipientsList []string `tick:"Recipients"` }
tick:embedded:AlertNode.OpsGenie
func (OpsGenieHandler) Alert ¶ added in v0.13.0
func (n OpsGenieHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (OpsGenieHandler) Bottom ¶ added in v0.13.0
func (n OpsGenieHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (OpsGenieHandler) Combine ¶ added in v1.0.0
func (n OpsGenieHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (OpsGenieHandler) Count ¶ added in v0.13.0
func (n OpsGenieHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (OpsGenieHandler) Default ¶ added in v0.13.0
func (n OpsGenieHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (OpsGenieHandler) Delete ¶ added in v1.0.0
func (n OpsGenieHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (OpsGenieHandler) Derivative ¶ added in v0.13.0
func (n OpsGenieHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (OpsGenieHandler) Difference ¶ added in v1.0.0
func (n OpsGenieHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (OpsGenieHandler) Distinct ¶ added in v0.13.0
func (n OpsGenieHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (OpsGenieHandler) Elapsed ¶ added in v0.13.0
func (n OpsGenieHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (OpsGenieHandler) Eval ¶ added in v0.13.0
func (n OpsGenieHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (OpsGenieHandler) First ¶ added in v0.13.0
func (n OpsGenieHandler) First(field string) *InfluxQLNode
Select the first point.
func (OpsGenieHandler) Flatten ¶ added in v1.0.0
func (n OpsGenieHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (OpsGenieHandler) GroupBy ¶ added in v0.13.0
func (n OpsGenieHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (OpsGenieHandler) HoltWinters ¶ added in v1.0.0
func (n OpsGenieHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (OpsGenieHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n OpsGenieHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (OpsGenieHandler) HttpOut ¶ added in v0.13.0
func (n OpsGenieHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (OpsGenieHandler) InfluxDBOut ¶ added in v0.13.0
func (n OpsGenieHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (OpsGenieHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (OpsGenieHandler) Last ¶ added in v0.13.0
func (n OpsGenieHandler) Last(field string) *InfluxQLNode
Select the last point.
func (OpsGenieHandler) Max ¶ added in v0.13.0
func (n OpsGenieHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (OpsGenieHandler) Mean ¶ added in v0.13.0
func (n OpsGenieHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (OpsGenieHandler) Median ¶ added in v0.13.0
func (n OpsGenieHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (OpsGenieHandler) Min ¶ added in v0.13.0
func (n OpsGenieHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (OpsGenieHandler) Mode ¶ added in v1.0.0
func (n OpsGenieHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (OpsGenieHandler) MovingAverage ¶ added in v1.0.0
func (n OpsGenieHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (OpsGenieHandler) Percentile ¶ added in v0.13.0
func (n OpsGenieHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*OpsGenieHandler) Recipients ¶ added in v0.2.4
func (og *OpsGenieHandler) Recipients(recipients ...string) *OpsGenieHandler
The list of recipients to be alerted. If empty defaults to the recipients from the configuration. tick:property
func (OpsGenieHandler) Sample ¶ added in v0.13.0
func (n OpsGenieHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (OpsGenieHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (OpsGenieHandler) Spread ¶ added in v0.13.0
func (n OpsGenieHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (OpsGenieHandler) Stddev ¶ added in v0.13.0
func (n OpsGenieHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (OpsGenieHandler) Sum ¶ added in v0.13.0
func (n OpsGenieHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*OpsGenieHandler) Teams ¶ added in v0.2.4
func (og *OpsGenieHandler) Teams(teams ...string) *OpsGenieHandler
The list of teams to be alerted. If empty defaults to the teams from the configuration. tick:property
func (OpsGenieHandler) Top ¶ added in v0.13.0
func (n OpsGenieHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (OpsGenieHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (OpsGenieHandler) Where ¶ added in v0.13.0
func (n OpsGenieHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (OpsGenieHandler) Window ¶ added in v0.13.0
func (n OpsGenieHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type PagerDutyHandler ¶ added in v0.2.4
type PagerDutyHandler struct { *AlertNode // The service key to use for the alert. // Defaults to the value in the configuration if empty. ServiceKey string }
tick:embedded:AlertNode.PagerDuty
func (PagerDutyHandler) Alert ¶ added in v0.13.0
func (n PagerDutyHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (PagerDutyHandler) Bottom ¶ added in v0.13.0
func (n PagerDutyHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (PagerDutyHandler) Combine ¶ added in v1.0.0
func (n PagerDutyHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (PagerDutyHandler) Count ¶ added in v0.13.0
func (n PagerDutyHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (PagerDutyHandler) Default ¶ added in v0.13.0
func (n PagerDutyHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (PagerDutyHandler) Delete ¶ added in v1.0.0
func (n PagerDutyHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (PagerDutyHandler) Derivative ¶ added in v0.13.0
func (n PagerDutyHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (PagerDutyHandler) Difference ¶ added in v1.0.0
func (n PagerDutyHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (PagerDutyHandler) Distinct ¶ added in v0.13.0
func (n PagerDutyHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (PagerDutyHandler) Elapsed ¶ added in v0.13.0
func (n PagerDutyHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (PagerDutyHandler) Eval ¶ added in v0.13.0
func (n PagerDutyHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (PagerDutyHandler) First ¶ added in v0.13.0
func (n PagerDutyHandler) First(field string) *InfluxQLNode
Select the first point.
func (PagerDutyHandler) Flatten ¶ added in v1.0.0
func (n PagerDutyHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (PagerDutyHandler) GroupBy ¶ added in v0.13.0
func (n PagerDutyHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (PagerDutyHandler) HoltWinters ¶ added in v1.0.0
func (n PagerDutyHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (PagerDutyHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n PagerDutyHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (PagerDutyHandler) HttpOut ¶ added in v0.13.0
func (n PagerDutyHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (PagerDutyHandler) InfluxDBOut ¶ added in v0.13.0
func (n PagerDutyHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (PagerDutyHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (PagerDutyHandler) Last ¶ added in v0.13.0
func (n PagerDutyHandler) Last(field string) *InfluxQLNode
Select the last point.
func (PagerDutyHandler) Max ¶ added in v0.13.0
func (n PagerDutyHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (PagerDutyHandler) Mean ¶ added in v0.13.0
func (n PagerDutyHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (PagerDutyHandler) Median ¶ added in v0.13.0
func (n PagerDutyHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (PagerDutyHandler) Min ¶ added in v0.13.0
func (n PagerDutyHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (PagerDutyHandler) Mode ¶ added in v1.0.0
func (n PagerDutyHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (PagerDutyHandler) MovingAverage ¶ added in v1.0.0
func (n PagerDutyHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (PagerDutyHandler) Percentile ¶ added in v0.13.0
func (n PagerDutyHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (PagerDutyHandler) Sample ¶ added in v0.13.0
func (n PagerDutyHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (PagerDutyHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (PagerDutyHandler) Spread ¶ added in v0.13.0
func (n PagerDutyHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (PagerDutyHandler) Stddev ¶ added in v0.13.0
func (n PagerDutyHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (PagerDutyHandler) Sum ¶ added in v0.13.0
func (n PagerDutyHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (PagerDutyHandler) Top ¶ added in v0.13.0
func (n PagerDutyHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (PagerDutyHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (PagerDutyHandler) Where ¶ added in v0.13.0
func (n PagerDutyHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (PagerDutyHandler) Window ¶ added in v0.13.0
func (n PagerDutyHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type Pipeline ¶
type Pipeline struct {
// contains filtered or unexported fields
}
A complete data processing pipeline. Starts with a single source. tick:ignore
func CreatePipeline ¶
func CreatePipeline( script string, sourceEdge EdgeType, scope *stateful.Scope, deadman DeadmanService, predefinedVars map[string]tick.Var, ) (*Pipeline, error)
Create a pipeline from a given script. tick:ignore
type PostHandler ¶ added in v0.2.4
tick:embedded:AlertNode.Post
func (PostHandler) Alert ¶ added in v0.13.0
func (n PostHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (PostHandler) Bottom ¶ added in v0.13.0
func (n PostHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (PostHandler) Combine ¶ added in v1.0.0
func (n PostHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (PostHandler) Count ¶ added in v0.13.0
func (n PostHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (PostHandler) Default ¶ added in v0.13.0
func (n PostHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (PostHandler) Delete ¶ added in v1.0.0
func (n PostHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (PostHandler) Derivative ¶ added in v0.13.0
func (n PostHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (PostHandler) Difference ¶ added in v1.0.0
func (n PostHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (PostHandler) Distinct ¶ added in v0.13.0
func (n PostHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (PostHandler) Elapsed ¶ added in v0.13.0
func (n PostHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (PostHandler) Eval ¶ added in v0.13.0
func (n PostHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (PostHandler) First ¶ added in v0.13.0
func (n PostHandler) First(field string) *InfluxQLNode
Select the first point.
func (PostHandler) Flatten ¶ added in v1.0.0
func (n PostHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (PostHandler) GroupBy ¶ added in v0.13.0
func (n PostHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (PostHandler) HoltWinters ¶ added in v1.0.0
func (n PostHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (PostHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n PostHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (PostHandler) HttpOut ¶ added in v0.13.0
func (n PostHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (PostHandler) InfluxDBOut ¶ added in v0.13.0
func (n PostHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (PostHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (PostHandler) Last ¶ added in v0.13.0
func (n PostHandler) Last(field string) *InfluxQLNode
Select the last point.
func (PostHandler) Max ¶ added in v0.13.0
func (n PostHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (PostHandler) Mean ¶ added in v0.13.0
func (n PostHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (PostHandler) Median ¶ added in v0.13.0
func (n PostHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (PostHandler) Min ¶ added in v0.13.0
func (n PostHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (PostHandler) Mode ¶ added in v1.0.0
func (n PostHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (PostHandler) MovingAverage ¶ added in v1.0.0
func (n PostHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (PostHandler) Percentile ¶ added in v0.13.0
func (n PostHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (PostHandler) Sample ¶ added in v0.13.0
func (n PostHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (PostHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (PostHandler) Spread ¶ added in v0.13.0
func (n PostHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (PostHandler) Stddev ¶ added in v0.13.0
func (n PostHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (PostHandler) Sum ¶ added in v0.13.0
func (n PostHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (PostHandler) Top ¶ added in v0.13.0
func (n PostHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (PostHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (PostHandler) Where ¶ added in v0.13.0
func (n PostHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (PostHandler) Window ¶ added in v0.13.0
func (n PostHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type QueryNode ¶ added in v0.13.0
type QueryNode struct { // The query text //tick:ignore QueryStr string // The period or length of time that will be queried from InfluxDB Period time.Duration // How often to query InfluxDB. // // The Every property is mutually exclusive with the Cron property. Every time.Duration // Align start and end times with the Every value // Does not apply if Cron is used. // tick:ignore AlignFlag bool `tick:"Align"` // Define a schedule using a cron syntax. // // The specific cron implementation is documented here: // https://github.com/gorhill/cronexpr#implementation // // The Cron property is mutually exclusive with the Every property. Cron string // How far back in time to query from the current time // // For example an Offest of 2 hours and an Every of 5m, // Kapacitor will query InfluxDB every 5 minutes for the window of data 2 hours ago. // // This applies to Cron schedules as well. If the cron specifies to run every Sunday at // 1 AM and the Offset is 1 hour. Then at 1 AM on Sunday the data from 12 AM will be queried. Offset time.Duration // The list of dimensions for the group-by clause. //tick:ignore Dimensions []interface{} `tick:"GroupBy"` // Whether to include the measurement in the group ID. // tick:ignore GroupByMeasurementFlag bool `tick:"GroupByMeasurement"` // Fill the data. // Options are: // // - Any numerical value // - null - exhibits the same behavior as the default // - previous - reports the value of the previous window // - none - suppresses timestamps and values where the value is null Fill interface{} // The name of a configured InfluxDB cluster. // If empty the default cluster will be used. Cluster string // contains filtered or unexported fields }
A QueryNode defines a source and a schedule for processing batch data. The data is queried from an InfluxDB database and then passed into the data pipeline.
Example: batch
|query(''' SELECT mean("value") FROM "telegraf"."default".cpu_usage_idle WHERE "host" = 'serverA' ''') .period(1m) .every(20s) .groupBy(time(10s), 'cpu') ...
In the above example InfluxDB is queried every 20 seconds; the window of time returned spans 1 minute and is grouped into 10 second buckets.
func (*QueryNode) Alert ¶ added in v0.13.0
func (n *QueryNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*QueryNode) Align ¶ added in v0.13.0
Align start and stop times for quiries with even boundaries of the QueryNode.Every property. Does not apply if using the QueryNode.Cron property. tick:property
func (*QueryNode) Bottom ¶ added in v0.13.0
func (n *QueryNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*QueryNode) ChainMethods ¶ added in v0.13.0
func (*QueryNode) Combine ¶ added in v1.0.0
func (n *QueryNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*QueryNode) Count ¶ added in v0.13.0
func (n *QueryNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*QueryNode) Default ¶ added in v0.13.0
func (n *QueryNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*QueryNode) Delete ¶ added in v1.0.0
func (n *QueryNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*QueryNode) Derivative ¶ added in v0.13.0
func (n *QueryNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*QueryNode) Difference ¶ added in v1.0.0
func (n *QueryNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*QueryNode) Distinct ¶ added in v0.13.0
func (n *QueryNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*QueryNode) Elapsed ¶ added in v0.13.0
func (n *QueryNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*QueryNode) Eval ¶ added in v0.13.0
func (n *QueryNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*QueryNode) First ¶ added in v0.13.0
func (n *QueryNode) First(field string) *InfluxQLNode
Select the first point.
func (*QueryNode) Flatten ¶ added in v1.0.0
func (n *QueryNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*QueryNode) GroupBy ¶ added in v0.13.0
Group the data by a set of dimensions. Can specify one time dimension.
This property adds a `GROUP BY` clause to the query so all the normal behaviors when quering InfluxDB with a `GROUP BY` apply.
Use group by time when your period is longer than your group by time interval.
Example:
batch |query(...) .period(1m) .every(1m) .groupBy(time(10s), 'tag1', 'tag2')) .align()
A group by time offset is also possible.
Example:
batch |query(...) .period(1m) .every(1m) .groupBy(time(10s, -5s), 'tag1', 'tag2')) .align() .offset(5s)
It is recommended to use QueryNode.Align and QueryNode.Offset in conjunction with group by time dimensions so that the time bounds match up with the group by intervals.
NOTE: Since QueryNode.Offset is inherently a negative property the second "offset" argument to the "time" function is negative to match.
tick:property
func (*QueryNode) GroupByMeasurement ¶ added in v1.0.0
If set will include the measurement name in the group ID. Along with any other group by dimensions.
Example: batch
|query('SELECT sum("value") FROM "telegraf"."autogen"./process_.*/') .groupByMeasurement() .groupBy('host')
The above example selects data from several measurements matching `/process_.*/ and then each point is grouped by the host tag and measurement name. Thus keeping measurements in their own groups. tick:property
func (*QueryNode) HoltWinters ¶ added in v1.0.0
func (n *QueryNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*QueryNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *QueryNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*QueryNode) HttpOut ¶ added in v0.13.0
func (n *QueryNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*QueryNode) InfluxDBOut ¶ added in v0.13.0
func (n *QueryNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*QueryNode) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (*QueryNode) Last ¶ added in v0.13.0
func (n *QueryNode) Last(field string) *InfluxQLNode
Select the last point.
func (*QueryNode) Log ¶ added in v0.13.0
func (n *QueryNode) Log() *LogNode
Create a node that logs all data it receives.
func (*QueryNode) Max ¶ added in v0.13.0
func (n *QueryNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*QueryNode) Mean ¶ added in v0.13.0
func (n *QueryNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*QueryNode) Median ¶ added in v0.13.0
func (n *QueryNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*QueryNode) Min ¶ added in v0.13.0
func (n *QueryNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*QueryNode) Mode ¶ added in v1.0.0
func (n *QueryNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*QueryNode) MovingAverage ¶ added in v1.0.0
func (n *QueryNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*QueryNode) Percentile ¶ added in v0.13.0
func (n *QueryNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*QueryNode) Sample ¶ added in v0.13.0
func (n *QueryNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*QueryNode) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (*QueryNode) Spread ¶ added in v0.13.0
func (n *QueryNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*QueryNode) Stddev ¶ added in v0.13.0
func (n *QueryNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*QueryNode) Sum ¶ added in v0.13.0
func (n *QueryNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*QueryNode) Top ¶ added in v0.13.0
func (n *QueryNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*QueryNode) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (*QueryNode) Where ¶ added in v0.13.0
func (n *QueryNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*QueryNode) Window ¶ added in v0.13.0
func (n *QueryNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type ReduceCreater ¶ added in v0.11.0
type ReduceCreater struct { CreateFloatReducer func() (influxql.FloatPointAggregator, influxql.FloatPointEmitter) CreateFloatBulkReducer func() (FloatBulkPointAggregator, influxql.FloatPointEmitter) CreateFloatIntegerReducer func() (influxql.FloatPointAggregator, influxql.IntegerPointEmitter) CreateFloatBulkIntegerReducer func() (FloatBulkPointAggregator, influxql.IntegerPointEmitter) CreateFloatStringReducer func() (influxql.FloatPointAggregator, influxql.StringPointEmitter) CreateFloatBulkStringReducer func() (FloatBulkPointAggregator, influxql.StringPointEmitter) CreateFloatBooleanReducer func() (influxql.FloatPointAggregator, influxql.BooleanPointEmitter) CreateFloatBulkBooleanReducer func() (FloatBulkPointAggregator, influxql.BooleanPointEmitter) CreateIntegerFloatReducer func() (influxql.IntegerPointAggregator, influxql.FloatPointEmitter) CreateIntegerBulkFloatReducer func() (IntegerBulkPointAggregator, influxql.FloatPointEmitter) CreateIntegerReducer func() (influxql.IntegerPointAggregator, influxql.IntegerPointEmitter) CreateIntegerBulkReducer func() (IntegerBulkPointAggregator, influxql.IntegerPointEmitter) CreateIntegerStringReducer func() (influxql.IntegerPointAggregator, influxql.StringPointEmitter) CreateIntegerBulkStringReducer func() (IntegerBulkPointAggregator, influxql.StringPointEmitter) CreateIntegerBooleanReducer func() (influxql.IntegerPointAggregator, influxql.BooleanPointEmitter) CreateIntegerBulkBooleanReducer func() (IntegerBulkPointAggregator, influxql.BooleanPointEmitter) CreateStringFloatReducer func() (influxql.StringPointAggregator, influxql.FloatPointEmitter) CreateStringBulkFloatReducer func() (StringBulkPointAggregator, influxql.FloatPointEmitter) CreateStringIntegerReducer func() (influxql.StringPointAggregator, influxql.IntegerPointEmitter) CreateStringBulkIntegerReducer func() (StringBulkPointAggregator, influxql.IntegerPointEmitter) CreateStringReducer func() (influxql.StringPointAggregator, influxql.StringPointEmitter) CreateStringBulkReducer func() (StringBulkPointAggregator, influxql.StringPointEmitter) CreateStringBooleanReducer func() (influxql.StringPointAggregator, influxql.BooleanPointEmitter) CreateStringBulkBooleanReducer func() (StringBulkPointAggregator, influxql.BooleanPointEmitter) CreateBooleanFloatReducer func() (influxql.BooleanPointAggregator, influxql.FloatPointEmitter) CreateBooleanBulkFloatReducer func() (BooleanBulkPointAggregator, influxql.FloatPointEmitter) CreateBooleanIntegerReducer func() (influxql.BooleanPointAggregator, influxql.IntegerPointEmitter) CreateBooleanBulkIntegerReducer func() (BooleanBulkPointAggregator, influxql.IntegerPointEmitter) CreateBooleanStringReducer func() (influxql.BooleanPointAggregator, influxql.StringPointEmitter) CreateBooleanBulkStringReducer func() (BooleanBulkPointAggregator, influxql.StringPointEmitter) CreateBooleanReducer func() (influxql.BooleanPointAggregator, influxql.BooleanPointEmitter) CreateBooleanBulkReducer func() (BooleanBulkPointAggregator, influxql.BooleanPointEmitter) TopBottomCallInfo *TopBottomCallInfo IsSimpleSelector bool IsStreamTransformation bool IsEmptyOK bool }
type SampleNode ¶
type SampleNode struct { // Keep every N point or batch // tick:ignore N int64 // Keep one point or batch every Duration // tick:ignore Duration time.Duration // contains filtered or unexported fields }
Sample points or batches. One point will be emitted every count or duration specified.
Example:
stream |sample(3)
Keep every third data point or batch.
Example:
stream |sample(10s)
Keep only samples that land on the 10s boundary. See FromNode.Truncate, QueryNode.GroupBy time or WindowNode.Align for ensuring data is aligned with a boundary.
func (*SampleNode) Alert ¶
func (n *SampleNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*SampleNode) Bottom ¶ added in v0.11.0
func (n *SampleNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*SampleNode) Combine ¶ added in v1.0.0
func (n *SampleNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*SampleNode) Count ¶
func (n *SampleNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*SampleNode) Default ¶ added in v0.13.0
func (n *SampleNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*SampleNode) Delete ¶ added in v1.0.0
func (n *SampleNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*SampleNode) Derivative ¶
func (n *SampleNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*SampleNode) Difference ¶ added in v1.0.0
func (n *SampleNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*SampleNode) Distinct ¶ added in v0.11.0
func (n *SampleNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*SampleNode) Elapsed ¶ added in v0.13.0
func (n *SampleNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*SampleNode) Eval ¶
func (n *SampleNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*SampleNode) First ¶ added in v0.11.0
func (n *SampleNode) First(field string) *InfluxQLNode
Select the first point.
func (*SampleNode) Flatten ¶ added in v1.0.0
func (n *SampleNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*SampleNode) GroupBy ¶
func (n *SampleNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*SampleNode) HoltWinters ¶ added in v1.0.0
func (n *SampleNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*SampleNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *SampleNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*SampleNode) HttpOut ¶
func (n *SampleNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*SampleNode) InfluxDBOut ¶
func (n *SampleNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*SampleNode) Last ¶ added in v0.11.0
func (n *SampleNode) Last(field string) *InfluxQLNode
Select the last point.
func (*SampleNode) Log ¶ added in v0.11.0
func (n *SampleNode) Log() *LogNode
Create a node that logs all data it receives.
func (*SampleNode) Max ¶ added in v0.11.0
func (n *SampleNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*SampleNode) Mean ¶ added in v0.11.0
func (n *SampleNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*SampleNode) Median ¶ added in v0.11.0
func (n *SampleNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*SampleNode) Min ¶ added in v0.11.0
func (n *SampleNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*SampleNode) Mode ¶ added in v1.0.0
func (n *SampleNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*SampleNode) MovingAverage ¶ added in v1.0.0
func (n *SampleNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*SampleNode) Percentile ¶ added in v0.11.0
func (n *SampleNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*SampleNode) Sample ¶
func (n *SampleNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*SampleNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*SampleNode) Spread ¶ added in v0.11.0
func (n *SampleNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*SampleNode) Stddev ¶ added in v0.11.0
func (n *SampleNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*SampleNode) Sum ¶ added in v0.11.0
func (n *SampleNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*SampleNode) Top ¶ added in v0.11.0
func (n *SampleNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*SampleNode) Where ¶
func (n *SampleNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*SampleNode) Window ¶
func (n *SampleNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type SensuHandler ¶ added in v0.10.0
type SensuHandler struct {
*AlertNode
}
tick:embedded:AlertNode.Sensu
func (SensuHandler) Alert ¶ added in v0.13.0
func (n SensuHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (SensuHandler) Bottom ¶ added in v0.13.0
func (n SensuHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (SensuHandler) Combine ¶ added in v1.0.0
func (n SensuHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (SensuHandler) Count ¶ added in v0.13.0
func (n SensuHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (SensuHandler) Default ¶ added in v0.13.0
func (n SensuHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (SensuHandler) Delete ¶ added in v1.0.0
func (n SensuHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (SensuHandler) Derivative ¶ added in v0.13.0
func (n SensuHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (SensuHandler) Difference ¶ added in v1.0.0
func (n SensuHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (SensuHandler) Distinct ¶ added in v0.13.0
func (n SensuHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (SensuHandler) Elapsed ¶ added in v0.13.0
func (n SensuHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (SensuHandler) Eval ¶ added in v0.13.0
func (n SensuHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (SensuHandler) First ¶ added in v0.13.0
func (n SensuHandler) First(field string) *InfluxQLNode
Select the first point.
func (SensuHandler) Flatten ¶ added in v1.0.0
func (n SensuHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (SensuHandler) GroupBy ¶ added in v0.13.0
func (n SensuHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (SensuHandler) HoltWinters ¶ added in v1.0.0
func (n SensuHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (SensuHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n SensuHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (SensuHandler) HttpOut ¶ added in v0.13.0
func (n SensuHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (SensuHandler) InfluxDBOut ¶ added in v0.13.0
func (n SensuHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (SensuHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (SensuHandler) Last ¶ added in v0.13.0
func (n SensuHandler) Last(field string) *InfluxQLNode
Select the last point.
func (SensuHandler) Max ¶ added in v0.13.0
func (n SensuHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (SensuHandler) Mean ¶ added in v0.13.0
func (n SensuHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (SensuHandler) Median ¶ added in v0.13.0
func (n SensuHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (SensuHandler) Min ¶ added in v0.13.0
func (n SensuHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (SensuHandler) Mode ¶ added in v1.0.0
func (n SensuHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (SensuHandler) MovingAverage ¶ added in v1.0.0
func (n SensuHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (SensuHandler) Percentile ¶ added in v0.13.0
func (n SensuHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (SensuHandler) Sample ¶ added in v0.13.0
func (n SensuHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (SensuHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (SensuHandler) Spread ¶ added in v0.13.0
func (n SensuHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (SensuHandler) Stddev ¶ added in v0.13.0
func (n SensuHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (SensuHandler) Sum ¶ added in v0.13.0
func (n SensuHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (SensuHandler) Top ¶ added in v0.13.0
func (n SensuHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (SensuHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (SensuHandler) Where ¶ added in v0.13.0
func (n SensuHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (SensuHandler) Window ¶ added in v0.13.0
func (n SensuHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type ShiftNode ¶ added in v0.11.0
type ShiftNode struct { // Keep one point or batch every Duration // tick:ignore Shift time.Duration // contains filtered or unexported fields }
Shift points and batches in time, this is useful for comparing batches or points from different times.
Example:
stream |shift(5m)
Shift all data points 5m forward in time.
Example:
stream |shift(-10s)
Shift all data points 10s backward in time.
func (*ShiftNode) Alert ¶ added in v0.11.0
func (n *ShiftNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*ShiftNode) Bottom ¶ added in v0.11.0
func (n *ShiftNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*ShiftNode) Combine ¶ added in v1.0.0
func (n *ShiftNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*ShiftNode) Count ¶ added in v0.11.0
func (n *ShiftNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*ShiftNode) Default ¶ added in v0.13.0
func (n *ShiftNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*ShiftNode) Delete ¶ added in v1.0.0
func (n *ShiftNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*ShiftNode) Derivative ¶ added in v0.11.0
func (n *ShiftNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*ShiftNode) Difference ¶ added in v1.0.0
func (n *ShiftNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*ShiftNode) Distinct ¶ added in v0.11.0
func (n *ShiftNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*ShiftNode) Elapsed ¶ added in v0.13.0
func (n *ShiftNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*ShiftNode) Eval ¶ added in v0.11.0
func (n *ShiftNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*ShiftNode) First ¶ added in v0.11.0
func (n *ShiftNode) First(field string) *InfluxQLNode
Select the first point.
func (*ShiftNode) Flatten ¶ added in v1.0.0
func (n *ShiftNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*ShiftNode) GroupBy ¶ added in v0.11.0
func (n *ShiftNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*ShiftNode) HoltWinters ¶ added in v1.0.0
func (n *ShiftNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*ShiftNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *ShiftNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*ShiftNode) HttpOut ¶ added in v0.11.0
func (n *ShiftNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*ShiftNode) InfluxDBOut ¶ added in v0.11.0
func (n *ShiftNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*ShiftNode) Join ¶ added in v0.11.0
Join this node with other nodes. The data are joined on timestamp.
func (*ShiftNode) Last ¶ added in v0.11.0
func (n *ShiftNode) Last(field string) *InfluxQLNode
Select the last point.
func (*ShiftNode) Log ¶ added in v0.11.0
func (n *ShiftNode) Log() *LogNode
Create a node that logs all data it receives.
func (*ShiftNode) Max ¶ added in v0.11.0
func (n *ShiftNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*ShiftNode) Mean ¶ added in v0.11.0
func (n *ShiftNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*ShiftNode) Median ¶ added in v0.11.0
func (n *ShiftNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*ShiftNode) Min ¶ added in v0.11.0
func (n *ShiftNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*ShiftNode) Mode ¶ added in v1.0.0
func (n *ShiftNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*ShiftNode) MovingAverage ¶ added in v1.0.0
func (n *ShiftNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*ShiftNode) Percentile ¶ added in v0.11.0
func (n *ShiftNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*ShiftNode) Sample ¶ added in v0.11.0
func (n *ShiftNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*ShiftNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*ShiftNode) Spread ¶ added in v0.11.0
func (n *ShiftNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*ShiftNode) Stddev ¶ added in v0.11.0
func (n *ShiftNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*ShiftNode) Sum ¶ added in v0.11.0
func (n *ShiftNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*ShiftNode) Top ¶ added in v0.11.0
func (n *ShiftNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*ShiftNode) Union ¶ added in v0.11.0
Perform the union of this node and all other given nodes.
func (*ShiftNode) Where ¶ added in v0.11.0
func (n *ShiftNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*ShiftNode) Window ¶ added in v0.11.0
func (n *ShiftNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type SlackHandler ¶ added in v0.2.4
type SlackHandler struct { *AlertNode // Slack channel in which to post messages. // If empty uses the channel from the configuration. Channel string }
tick:embedded:AlertNode.Slack
func (SlackHandler) Alert ¶ added in v0.13.0
func (n SlackHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (SlackHandler) Bottom ¶ added in v0.13.0
func (n SlackHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (SlackHandler) Combine ¶ added in v1.0.0
func (n SlackHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (SlackHandler) Count ¶ added in v0.13.0
func (n SlackHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (SlackHandler) Default ¶ added in v0.13.0
func (n SlackHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (SlackHandler) Delete ¶ added in v1.0.0
func (n SlackHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (SlackHandler) Derivative ¶ added in v0.13.0
func (n SlackHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (SlackHandler) Difference ¶ added in v1.0.0
func (n SlackHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (SlackHandler) Distinct ¶ added in v0.13.0
func (n SlackHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (SlackHandler) Elapsed ¶ added in v0.13.0
func (n SlackHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (SlackHandler) Eval ¶ added in v0.13.0
func (n SlackHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (SlackHandler) First ¶ added in v0.13.0
func (n SlackHandler) First(field string) *InfluxQLNode
Select the first point.
func (SlackHandler) Flatten ¶ added in v1.0.0
func (n SlackHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (SlackHandler) GroupBy ¶ added in v0.13.0
func (n SlackHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (SlackHandler) HoltWinters ¶ added in v1.0.0
func (n SlackHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (SlackHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n SlackHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (SlackHandler) HttpOut ¶ added in v0.13.0
func (n SlackHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (SlackHandler) InfluxDBOut ¶ added in v0.13.0
func (n SlackHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (SlackHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (SlackHandler) Last ¶ added in v0.13.0
func (n SlackHandler) Last(field string) *InfluxQLNode
Select the last point.
func (SlackHandler) Max ¶ added in v0.13.0
func (n SlackHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (SlackHandler) Mean ¶ added in v0.13.0
func (n SlackHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (SlackHandler) Median ¶ added in v0.13.0
func (n SlackHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (SlackHandler) Min ¶ added in v0.13.0
func (n SlackHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (SlackHandler) Mode ¶ added in v1.0.0
func (n SlackHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (SlackHandler) MovingAverage ¶ added in v1.0.0
func (n SlackHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (SlackHandler) Percentile ¶ added in v0.13.0
func (n SlackHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (SlackHandler) Sample ¶ added in v0.13.0
func (n SlackHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (SlackHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (SlackHandler) Spread ¶ added in v0.13.0
func (n SlackHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (SlackHandler) Stddev ¶ added in v0.13.0
func (n SlackHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (SlackHandler) Sum ¶ added in v0.13.0
func (n SlackHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (SlackHandler) Top ¶ added in v0.13.0
func (n SlackHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (SlackHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (SlackHandler) Where ¶ added in v0.13.0
func (n SlackHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (SlackHandler) Window ¶ added in v0.13.0
func (n SlackHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type StatsNode ¶ added in v0.10.0
type StatsNode struct { // tick:ignore SourceNode Node // tick:ignore Interval time.Duration // tick:ignore AlignFlag bool `tick:"Align"` // contains filtered or unexported fields }
A StatsNode emits internal statistics about the another node at a given interval.
The interval represents how often to emit the statistics based on real time. This means the interval time is independent of the times of the data points the other node is receiving. As a result the StatsNode is a root node in the task pipeline.
The currently available internal statistics:
- emitted -- the number of points or batches this node has sent to its children.
Each stat is available as a field in the data stream.
The stats are in groups according to the original data. Meaning that if the source node is grouped by the tag 'host' as an example, then the counts are output per host with the appropriate 'host' tag. Since its possible for groups to change when crossing a node only the emitted groups are considered.
Example:
var data = stream |from()... // Emit statistics every 1 minute and cache them via the HTTP API. data |stats(1m) |httpOut('stats') // Continue normal processing of the data stream data...
WARNING: It is not recommended to join the stats stream with the original data stream. Since they operate on different clocks you could potentially create a deadlock. This is a limitation of the current implementation and may be removed in the future.
func (*StatsNode) Alert ¶ added in v0.10.0
func (n *StatsNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*StatsNode) Align ¶ added in v1.0.0
Round times to the StatsNode.Interval value. tick:property
func (*StatsNode) Bottom ¶ added in v0.11.0
func (n *StatsNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*StatsNode) Combine ¶ added in v1.0.0
func (n *StatsNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*StatsNode) Count ¶ added in v0.11.0
func (n *StatsNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*StatsNode) Default ¶ added in v0.13.0
func (n *StatsNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*StatsNode) Delete ¶ added in v1.0.0
func (n *StatsNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*StatsNode) Derivative ¶ added in v0.10.0
func (n *StatsNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*StatsNode) Difference ¶ added in v1.0.0
func (n *StatsNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*StatsNode) Distinct ¶ added in v0.11.0
func (n *StatsNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*StatsNode) Elapsed ¶ added in v0.13.0
func (n *StatsNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*StatsNode) Eval ¶ added in v0.10.0
func (n *StatsNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*StatsNode) First ¶ added in v0.11.0
func (n *StatsNode) First(field string) *InfluxQLNode
Select the first point.
func (*StatsNode) Flatten ¶ added in v1.0.0
func (n *StatsNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*StatsNode) GroupBy ¶ added in v0.10.0
func (n *StatsNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*StatsNode) HoltWinters ¶ added in v1.0.0
func (n *StatsNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*StatsNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *StatsNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*StatsNode) HttpOut ¶ added in v0.10.0
func (n *StatsNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*StatsNode) InfluxDBOut ¶ added in v0.10.0
func (n *StatsNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*StatsNode) Join ¶ added in v0.10.0
Join this node with other nodes. The data are joined on timestamp.
func (*StatsNode) Last ¶ added in v0.11.0
func (n *StatsNode) Last(field string) *InfluxQLNode
Select the last point.
func (*StatsNode) Log ¶ added in v0.11.0
func (n *StatsNode) Log() *LogNode
Create a node that logs all data it receives.
func (*StatsNode) Max ¶ added in v0.11.0
func (n *StatsNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*StatsNode) Mean ¶ added in v0.11.0
func (n *StatsNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*StatsNode) Median ¶ added in v0.11.0
func (n *StatsNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*StatsNode) Min ¶ added in v0.11.0
func (n *StatsNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*StatsNode) Mode ¶ added in v1.0.0
func (n *StatsNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*StatsNode) MovingAverage ¶ added in v1.0.0
func (n *StatsNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*StatsNode) Percentile ¶ added in v0.11.0
func (n *StatsNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*StatsNode) Sample ¶ added in v0.10.0
func (n *StatsNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*StatsNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*StatsNode) Spread ¶ added in v0.11.0
func (n *StatsNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*StatsNode) Stddev ¶ added in v0.11.0
func (n *StatsNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*StatsNode) Sum ¶ added in v0.11.0
func (n *StatsNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*StatsNode) Top ¶ added in v0.11.0
func (n *StatsNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*StatsNode) Union ¶ added in v0.10.0
Perform the union of this node and all other given nodes.
func (*StatsNode) Where ¶ added in v0.10.0
func (n *StatsNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*StatsNode) Window ¶ added in v0.10.0
func (n *StatsNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type StreamNode ¶
type StreamNode struct {
// contains filtered or unexported fields
}
A StreamNode represents the source of data being streamed to Kapacitor via any of its inputs. The `stream` variable in stream tasks is an instance of a StreamNode. StreamNode.From is the method/property of this node.
func (*StreamNode) Deadman ¶ added in v0.13.0
func (n *StreamNode) Deadman(threshold float64, interval time.Duration, expr ...*ast.LambdaNode) *AlertNode
Helper function for creating an alert on low throughput, a.k.a. deadman's switch.
- Threshold -- trigger alert if throughput drops below threshold in points/interval. - Interval -- how often to check the throughput. - Expressions -- optional list of expressions to also evaluate. Useful for time of day alerting.
Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |deadman(100.0, 10s) //Do normal processing of data data...
The above is equivalent to this Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |stats(10s) .align() |derivative('emitted') .unit(10s) .nonNegative() |alert() .id('node \'stream0\' in task \'{{ .TaskName }}\'') .message('{{ .ID }} is {{ if eq .Level "OK" }}alive{{ else }}dead{{ end }}: {{ index .Fields "emitted" | printf "%0.3f" }} points/10s.') .crit(lambda: "emitted" <= 100.0) //Do normal processing of data data...
The `id` and `message` alert properties can be configured globally via the 'deadman' configuration section.
Since the AlertNode is the last piece it can be further modified as usual. Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. data |deadman(100.0, 10s) .slack() .channel('#dead_tasks') //Do normal processing of data data...
You can specify additional lambda expressions to further constrain when the deadman's switch is triggered. Example:
var data = stream |from()... // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s. // Only trigger the alert if the time of day is between 8am-5pm. data |deadman(100.0, 10s, lambda: hour("time") >= 8 AND hour("time") <= 17) //Do normal processing of data data...
func (*StreamNode) From ¶
func (s *StreamNode) From() *FromNode
Creates a new FromNode that can be further filtered using the Database, RetentionPolicy, Measurement and Where properties. From can be called multiple times to create multiple independent forks of the data stream.
Example:
// Select the 'cpu' measurement from just the database 'mydb' // and retention policy 'myrp'. var cpu = stream |from() .database('mydb') .retentionPolicy('myrp') .measurement('cpu') // Select the 'load' measurement from any database and retention policy. var load = stream |from() .measurement('load') // Join cpu and load streams and do further processing. cpu |join(load) .as('cpu', 'load') ...
func (*StreamNode) Stats ¶ added in v0.13.0
Create a new stream of data that contains the internal statistics of the node. The interval represents how often to emit the statistics based on real time. This means the interval time is independent of the times of the data points the source node is receiving.
type StringBulkPointAggregator ¶ added in v1.0.0
type StringBulkPointAggregator interface { influxql.StringPointAggregator influxql.StringBulkPointAggregator }
type TalkHandler ¶ added in v0.10.1
type TalkHandler struct {
*AlertNode
}
tick:embedded:AlertNode.Talk
func (TalkHandler) Alert ¶ added in v0.13.0
func (n TalkHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (TalkHandler) Bottom ¶ added in v0.13.0
func (n TalkHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (TalkHandler) Combine ¶ added in v1.0.0
func (n TalkHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (TalkHandler) Count ¶ added in v0.13.0
func (n TalkHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (TalkHandler) Default ¶ added in v0.13.0
func (n TalkHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (TalkHandler) Delete ¶ added in v1.0.0
func (n TalkHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (TalkHandler) Derivative ¶ added in v0.13.0
func (n TalkHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (TalkHandler) Difference ¶ added in v1.0.0
func (n TalkHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (TalkHandler) Distinct ¶ added in v0.13.0
func (n TalkHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (TalkHandler) Elapsed ¶ added in v0.13.0
func (n TalkHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (TalkHandler) Eval ¶ added in v0.13.0
func (n TalkHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (TalkHandler) First ¶ added in v0.13.0
func (n TalkHandler) First(field string) *InfluxQLNode
Select the first point.
func (TalkHandler) Flatten ¶ added in v1.0.0
func (n TalkHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (TalkHandler) GroupBy ¶ added in v0.13.0
func (n TalkHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (TalkHandler) HoltWinters ¶ added in v1.0.0
func (n TalkHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (TalkHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n TalkHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (TalkHandler) HttpOut ¶ added in v0.13.0
func (n TalkHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (TalkHandler) InfluxDBOut ¶ added in v0.13.0
func (n TalkHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (TalkHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (TalkHandler) Last ¶ added in v0.13.0
func (n TalkHandler) Last(field string) *InfluxQLNode
Select the last point.
func (TalkHandler) Max ¶ added in v0.13.0
func (n TalkHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (TalkHandler) Mean ¶ added in v0.13.0
func (n TalkHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (TalkHandler) Median ¶ added in v0.13.0
func (n TalkHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (TalkHandler) Min ¶ added in v0.13.0
func (n TalkHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (TalkHandler) Mode ¶ added in v1.0.0
func (n TalkHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (TalkHandler) MovingAverage ¶ added in v1.0.0
func (n TalkHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (TalkHandler) Percentile ¶ added in v0.13.0
func (n TalkHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (TalkHandler) Sample ¶ added in v0.13.0
func (n TalkHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (TalkHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (TalkHandler) Spread ¶ added in v0.13.0
func (n TalkHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (TalkHandler) Stddev ¶ added in v0.13.0
func (n TalkHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (TalkHandler) Sum ¶ added in v0.13.0
func (n TalkHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (TalkHandler) Top ¶ added in v0.13.0
func (n TalkHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (TalkHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (TalkHandler) Where ¶ added in v0.13.0
func (n TalkHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (TalkHandler) Window ¶ added in v0.13.0
func (n TalkHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type TelegramHandler ¶ added in v1.0.0
type TelegramHandler struct { *AlertNode // Telegram user/group ID to post messages to. // If empty uses the chati-d from the configuration. ChatId string // Parse node, defaults to Mardown // If empty uses the parse-mode from the configuration. ParseMode string // Web Page preview // If empty uses the disable-web-page-preview from the configuration. // tick:ignore IsDisableWebPagePreview bool `tick:"DisableWebPagePreview"` // Disables Notification // If empty uses the disable-notification from the configuration. // tick:ignore IsDisableNotification bool `tick:"DisableNotification"` }
tick:embedded:AlertNode.Telegram
func (TelegramHandler) Alert ¶ added in v1.0.0
func (n TelegramHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (TelegramHandler) Bottom ¶ added in v1.0.0
func (n TelegramHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (TelegramHandler) Combine ¶ added in v1.0.0
func (n TelegramHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (TelegramHandler) Count ¶ added in v1.0.0
func (n TelegramHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (TelegramHandler) Default ¶ added in v1.0.0
func (n TelegramHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (TelegramHandler) Delete ¶ added in v1.0.0
func (n TelegramHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (TelegramHandler) Derivative ¶ added in v1.0.0
func (n TelegramHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (TelegramHandler) Difference ¶ added in v1.0.0
func (n TelegramHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*TelegramHandler) DisableNotification ¶ added in v1.0.0
func (tel *TelegramHandler) DisableNotification() *TelegramHandler
Disables the Notification. If empty defaults to the configuration. tick:property
func (*TelegramHandler) DisableWebPagePreview ¶ added in v1.0.0
func (tel *TelegramHandler) DisableWebPagePreview() *TelegramHandler
Disables the WebPagePreview. If empty defaults to the configuration. tick:property
func (TelegramHandler) Distinct ¶ added in v1.0.0
func (n TelegramHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (TelegramHandler) Elapsed ¶ added in v1.0.0
func (n TelegramHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (TelegramHandler) Eval ¶ added in v1.0.0
func (n TelegramHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (TelegramHandler) First ¶ added in v1.0.0
func (n TelegramHandler) First(field string) *InfluxQLNode
Select the first point.
func (TelegramHandler) Flatten ¶ added in v1.0.0
func (n TelegramHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (TelegramHandler) GroupBy ¶ added in v1.0.0
func (n TelegramHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (TelegramHandler) HoltWinters ¶ added in v1.0.0
func (n TelegramHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (TelegramHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n TelegramHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (TelegramHandler) HttpOut ¶ added in v1.0.0
func (n TelegramHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (TelegramHandler) InfluxDBOut ¶ added in v1.0.0
func (n TelegramHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (TelegramHandler) Join ¶ added in v1.0.0
Join this node with other nodes. The data are joined on timestamp.
func (TelegramHandler) Last ¶ added in v1.0.0
func (n TelegramHandler) Last(field string) *InfluxQLNode
Select the last point.
func (TelegramHandler) Max ¶ added in v1.0.0
func (n TelegramHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (TelegramHandler) Mean ¶ added in v1.0.0
func (n TelegramHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (TelegramHandler) Median ¶ added in v1.0.0
func (n TelegramHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (TelegramHandler) Min ¶ added in v1.0.0
func (n TelegramHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (TelegramHandler) Mode ¶ added in v1.0.0
func (n TelegramHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (TelegramHandler) MovingAverage ¶ added in v1.0.0
func (n TelegramHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (TelegramHandler) Percentile ¶ added in v1.0.0
func (n TelegramHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (TelegramHandler) Sample ¶ added in v1.0.0
func (n TelegramHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (TelegramHandler) Shift ¶ added in v1.0.0
Create a new node that shifts the incoming points or batches in time.
func (TelegramHandler) Spread ¶ added in v1.0.0
func (n TelegramHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (TelegramHandler) Stddev ¶ added in v1.0.0
func (n TelegramHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (TelegramHandler) Sum ¶ added in v1.0.0
func (n TelegramHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (TelegramHandler) Top ¶ added in v1.0.0
func (n TelegramHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (TelegramHandler) Union ¶ added in v1.0.0
Perform the union of this node and all other given nodes.
func (TelegramHandler) Where ¶ added in v1.0.0
func (n TelegramHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (TelegramHandler) Window ¶ added in v1.0.0
func (n TelegramHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type TemplatePipeline ¶ added in v1.0.0
type TemplatePipeline struct {
// contains filtered or unexported fields
}
func CreateTemplatePipeline ¶ added in v1.0.0
func CreateTemplatePipeline( script string, sourceEdge EdgeType, scope *stateful.Scope, deadman DeadmanService, ) (*TemplatePipeline, error)
Create a template pipeline tick:ignore
func (*TemplatePipeline) Dot ¶ added in v1.0.0
func (t *TemplatePipeline) Dot(name string) []byte
Return a graphviz .dot formatted byte array. tick:ignore
type TopBottomCallInfo ¶ added in v0.11.0
type TopBottomCallInfo struct {
FieldsAndTags []string
}
type UDFNode ¶ added in v0.10.0
type UDFNode struct { UDFName string // Options that were set on the node // tick:ignore Options []*udf.Option // contains filtered or unexported fields }
A UDFNode is a node that can run a User Defined Function (UDF) in a separate process.
A UDF is a custom script or binary that can communicate via Kapacitor's UDF RPC protocol. The path and arguments to the UDF program are specified in Kapacitor's configuration. Using TICKscripts you can invoke and configure your UDF for each task.
See the [README.md](https://github.com/influxdata/kapacitor/tree/master/udf/agent/) for details on how to write your own UDF.
UDFs are configured via Kapacitor's main configuration file.
Example:
[udf] [udf.functions] # Example moving average UDF. [udf.functions.movingAverage] prog = "/path/to/executable/moving_avg" args = [] timeout = "10s"
UDFs are first class objects in TICKscripts and are referenced via their configuration name.
Example:
// Given you have a UDF that computes a moving average // The UDF can define what its options are and then can be // invoked via a TICKscript like so: stream |from()... @movingAverage() .field('value') .size(100) .as('mavg') |httpOut('movingaverage')
NOTE: The UDF process runs as the same user as the Kapacitor daemon. As a result make the user is properly secured as well as the configuration file.
func (*UDFNode) Alert ¶ added in v0.10.0
func (n *UDFNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*UDFNode) Bottom ¶ added in v0.11.0
func (n *UDFNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*UDFNode) CallChainMethod ¶ added in v0.12.0
tick:ignore
func (*UDFNode) Combine ¶ added in v1.0.0
func (n *UDFNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*UDFNode) Count ¶ added in v0.11.0
func (n *UDFNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*UDFNode) Default ¶ added in v0.13.0
func (n *UDFNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*UDFNode) Delete ¶ added in v1.0.0
func (n *UDFNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*UDFNode) Derivative ¶ added in v0.10.0
func (n *UDFNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*UDFNode) Difference ¶ added in v1.0.0
func (n *UDFNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*UDFNode) Distinct ¶ added in v0.11.0
func (n *UDFNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*UDFNode) Elapsed ¶ added in v0.13.0
func (n *UDFNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*UDFNode) Eval ¶ added in v0.10.0
func (n *UDFNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*UDFNode) First ¶ added in v0.11.0
func (n *UDFNode) First(field string) *InfluxQLNode
Select the first point.
func (*UDFNode) Flatten ¶ added in v1.0.0
func (n *UDFNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*UDFNode) GroupBy ¶ added in v0.10.0
func (n *UDFNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*UDFNode) HasChainMethod ¶ added in v0.12.0
tick:ignore
func (*UDFNode) HasProperty ¶ added in v0.10.0
tick:ignore
func (*UDFNode) HoltWinters ¶ added in v1.0.0
func (n *UDFNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*UDFNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *UDFNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*UDFNode) HttpOut ¶ added in v0.10.0
func (n *UDFNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*UDFNode) InfluxDBOut ¶ added in v0.10.0
func (n *UDFNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*UDFNode) Join ¶ added in v0.10.0
Join this node with other nodes. The data are joined on timestamp.
func (*UDFNode) Last ¶ added in v0.11.0
func (n *UDFNode) Last(field string) *InfluxQLNode
Select the last point.
func (*UDFNode) Log ¶ added in v0.11.0
func (n *UDFNode) Log() *LogNode
Create a node that logs all data it receives.
func (*UDFNode) Max ¶ added in v0.11.0
func (n *UDFNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*UDFNode) Mean ¶ added in v0.11.0
func (n *UDFNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*UDFNode) Median ¶ added in v0.11.0
func (n *UDFNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*UDFNode) Min ¶ added in v0.11.0
func (n *UDFNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*UDFNode) Mode ¶ added in v1.0.0
func (n *UDFNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*UDFNode) MovingAverage ¶ added in v1.0.0
func (n *UDFNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*UDFNode) Percentile ¶ added in v0.11.0
func (n *UDFNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*UDFNode) Sample ¶ added in v0.10.0
func (n *UDFNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*UDFNode) SetProperty ¶ added in v0.10.0
tick:ignore
func (*UDFNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*UDFNode) Spread ¶ added in v0.11.0
func (n *UDFNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*UDFNode) Stddev ¶ added in v0.11.0
func (n *UDFNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*UDFNode) Sum ¶ added in v0.11.0
func (n *UDFNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*UDFNode) Top ¶ added in v0.11.0
func (n *UDFNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*UDFNode) Where ¶ added in v0.10.0
func (n *UDFNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*UDFNode) Window ¶ added in v0.10.0
func (n *UDFNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type UnionNode ¶
type UnionNode struct { // The new name of the stream. // If empty the name of the left node // (i.e. `leftNode.union(otherNode1, otherNode2)`) is used. Rename string // contains filtered or unexported fields }
Takes the union of all of its parents. The union is just a simple pass through. Each data points received from each parent is passed onto children nodes without modification.
Example:
var logins = stream |from() .measurement('logins') var logouts = stream |from() .measurement('logouts') var frontpage = stream |from() .measurement('frontpage') // Union all user actions into a single stream logins |union(logouts, frontpage) .rename('user_actions') ...
func (*UnionNode) Alert ¶
func (n *UnionNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*UnionNode) Bottom ¶ added in v0.11.0
func (n *UnionNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*UnionNode) Combine ¶ added in v1.0.0
func (n *UnionNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*UnionNode) Count ¶ added in v0.11.0
func (n *UnionNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*UnionNode) Default ¶ added in v0.13.0
func (n *UnionNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*UnionNode) Delete ¶ added in v1.0.0
func (n *UnionNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*UnionNode) Derivative ¶
func (n *UnionNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*UnionNode) Difference ¶ added in v1.0.0
func (n *UnionNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*UnionNode) Distinct ¶ added in v0.11.0
func (n *UnionNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*UnionNode) Elapsed ¶ added in v0.13.0
func (n *UnionNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*UnionNode) Eval ¶
func (n *UnionNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*UnionNode) First ¶ added in v0.11.0
func (n *UnionNode) First(field string) *InfluxQLNode
Select the first point.
func (*UnionNode) Flatten ¶ added in v1.0.0
func (n *UnionNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*UnionNode) GroupBy ¶
func (n *UnionNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*UnionNode) HoltWinters ¶ added in v1.0.0
func (n *UnionNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*UnionNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *UnionNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*UnionNode) HttpOut ¶
func (n *UnionNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*UnionNode) InfluxDBOut ¶
func (n *UnionNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*UnionNode) Last ¶ added in v0.11.0
func (n *UnionNode) Last(field string) *InfluxQLNode
Select the last point.
func (*UnionNode) Log ¶ added in v0.11.0
func (n *UnionNode) Log() *LogNode
Create a node that logs all data it receives.
func (*UnionNode) Max ¶ added in v0.11.0
func (n *UnionNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*UnionNode) Mean ¶ added in v0.11.0
func (n *UnionNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*UnionNode) Median ¶ added in v0.11.0
func (n *UnionNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*UnionNode) Min ¶ added in v0.11.0
func (n *UnionNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*UnionNode) Mode ¶ added in v1.0.0
func (n *UnionNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*UnionNode) MovingAverage ¶ added in v1.0.0
func (n *UnionNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*UnionNode) Percentile ¶ added in v0.11.0
func (n *UnionNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*UnionNode) Sample ¶
func (n *UnionNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*UnionNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*UnionNode) Spread ¶ added in v0.11.0
func (n *UnionNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*UnionNode) Stddev ¶ added in v0.11.0
func (n *UnionNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*UnionNode) Sum ¶ added in v0.11.0
func (n *UnionNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*UnionNode) Top ¶ added in v0.11.0
func (n *UnionNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*UnionNode) Where ¶
func (n *UnionNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*UnionNode) Window ¶
func (n *UnionNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type VictorOpsHandler ¶ added in v0.2.4
type VictorOpsHandler struct { *AlertNode // The routing key to use for the alert. // Defaults to the value in the configuration if empty. RoutingKey string }
tick:embedded:AlertNode.VictorOps
func (VictorOpsHandler) Alert ¶ added in v0.13.0
func (n VictorOpsHandler) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (VictorOpsHandler) Bottom ¶ added in v0.13.0
func (n VictorOpsHandler) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (VictorOpsHandler) Combine ¶ added in v1.0.0
func (n VictorOpsHandler) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (VictorOpsHandler) Count ¶ added in v0.13.0
func (n VictorOpsHandler) Count(field string) *InfluxQLNode
Count the number of points.
func (VictorOpsHandler) Default ¶ added in v0.13.0
func (n VictorOpsHandler) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (VictorOpsHandler) Delete ¶ added in v1.0.0
func (n VictorOpsHandler) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (VictorOpsHandler) Derivative ¶ added in v0.13.0
func (n VictorOpsHandler) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (VictorOpsHandler) Difference ¶ added in v1.0.0
func (n VictorOpsHandler) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (VictorOpsHandler) Distinct ¶ added in v0.13.0
func (n VictorOpsHandler) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (VictorOpsHandler) Elapsed ¶ added in v0.13.0
func (n VictorOpsHandler) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (VictorOpsHandler) Eval ¶ added in v0.13.0
func (n VictorOpsHandler) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (VictorOpsHandler) First ¶ added in v0.13.0
func (n VictorOpsHandler) First(field string) *InfluxQLNode
Select the first point.
func (VictorOpsHandler) Flatten ¶ added in v1.0.0
func (n VictorOpsHandler) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (VictorOpsHandler) GroupBy ¶ added in v0.13.0
func (n VictorOpsHandler) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (VictorOpsHandler) HoltWinters ¶ added in v1.0.0
func (n VictorOpsHandler) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (VictorOpsHandler) HoltWintersWithFit ¶ added in v1.0.0
func (n VictorOpsHandler) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (VictorOpsHandler) HttpOut ¶ added in v0.13.0
func (n VictorOpsHandler) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (VictorOpsHandler) InfluxDBOut ¶ added in v0.13.0
func (n VictorOpsHandler) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (VictorOpsHandler) Join ¶ added in v0.13.0
Join this node with other nodes. The data are joined on timestamp.
func (VictorOpsHandler) Last ¶ added in v0.13.0
func (n VictorOpsHandler) Last(field string) *InfluxQLNode
Select the last point.
func (VictorOpsHandler) Max ¶ added in v0.13.0
func (n VictorOpsHandler) Max(field string) *InfluxQLNode
Select the maximum point.
func (VictorOpsHandler) Mean ¶ added in v0.13.0
func (n VictorOpsHandler) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (VictorOpsHandler) Median ¶ added in v0.13.0
func (n VictorOpsHandler) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (VictorOpsHandler) Min ¶ added in v0.13.0
func (n VictorOpsHandler) Min(field string) *InfluxQLNode
Select the minimum point.
func (VictorOpsHandler) Mode ¶ added in v1.0.0
func (n VictorOpsHandler) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (VictorOpsHandler) MovingAverage ¶ added in v1.0.0
func (n VictorOpsHandler) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (VictorOpsHandler) Percentile ¶ added in v0.13.0
func (n VictorOpsHandler) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (VictorOpsHandler) Sample ¶ added in v0.13.0
func (n VictorOpsHandler) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (VictorOpsHandler) Shift ¶ added in v0.13.0
Create a new node that shifts the incoming points or batches in time.
func (VictorOpsHandler) Spread ¶ added in v0.13.0
func (n VictorOpsHandler) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (VictorOpsHandler) Stddev ¶ added in v0.13.0
func (n VictorOpsHandler) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (VictorOpsHandler) Sum ¶ added in v0.13.0
func (n VictorOpsHandler) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (VictorOpsHandler) Top ¶ added in v0.13.0
func (n VictorOpsHandler) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (VictorOpsHandler) Union ¶ added in v0.13.0
Perform the union of this node and all other given nodes.
func (VictorOpsHandler) Where ¶ added in v0.13.0
func (n VictorOpsHandler) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (VictorOpsHandler) Window ¶ added in v0.13.0
func (n VictorOpsHandler) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type WhereNode ¶
type WhereNode struct { // The expression predicate. // tick:ignore Lambda *ast.LambdaNode // contains filtered or unexported fields }
The WhereNode filters the data stream by a given expression.
Example: var sums = stream
|from() .groupBy('service', 'host') |sum('value')
//Watch particular host for issues. sums
|where(lambda: "host" == 'h001.example.com') |alert() .crit(lambda: TRUE) .email().to('user@example.com')
func (*WhereNode) Alert ¶
func (n *WhereNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*WhereNode) Bottom ¶ added in v0.11.0
func (n *WhereNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*WhereNode) Combine ¶ added in v1.0.0
func (n *WhereNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*WhereNode) Count ¶ added in v0.11.0
func (n *WhereNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*WhereNode) Default ¶ added in v0.13.0
func (n *WhereNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*WhereNode) Delete ¶ added in v1.0.0
func (n *WhereNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*WhereNode) Derivative ¶
func (n *WhereNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*WhereNode) Difference ¶ added in v1.0.0
func (n *WhereNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*WhereNode) Distinct ¶ added in v0.11.0
func (n *WhereNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*WhereNode) Elapsed ¶ added in v0.13.0
func (n *WhereNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*WhereNode) Eval ¶
func (n *WhereNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*WhereNode) First ¶ added in v0.11.0
func (n *WhereNode) First(field string) *InfluxQLNode
Select the first point.
func (*WhereNode) Flatten ¶ added in v1.0.0
func (n *WhereNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*WhereNode) GroupBy ¶
func (n *WhereNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*WhereNode) HoltWinters ¶ added in v1.0.0
func (n *WhereNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*WhereNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *WhereNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*WhereNode) HttpOut ¶
func (n *WhereNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*WhereNode) InfluxDBOut ¶
func (n *WhereNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*WhereNode) Last ¶ added in v0.11.0
func (n *WhereNode) Last(field string) *InfluxQLNode
Select the last point.
func (*WhereNode) Log ¶ added in v0.11.0
func (n *WhereNode) Log() *LogNode
Create a node that logs all data it receives.
func (*WhereNode) Max ¶ added in v0.11.0
func (n *WhereNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*WhereNode) Mean ¶ added in v0.11.0
func (n *WhereNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*WhereNode) Median ¶ added in v0.11.0
func (n *WhereNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*WhereNode) Min ¶ added in v0.11.0
func (n *WhereNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*WhereNode) Mode ¶ added in v1.0.0
func (n *WhereNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*WhereNode) MovingAverage ¶ added in v1.0.0
func (n *WhereNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*WhereNode) Percentile ¶ added in v0.11.0
func (n *WhereNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*WhereNode) Sample ¶
func (n *WhereNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*WhereNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*WhereNode) Spread ¶ added in v0.11.0
func (n *WhereNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*WhereNode) Stddev ¶ added in v0.11.0
func (n *WhereNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*WhereNode) Sum ¶ added in v0.11.0
func (n *WhereNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*WhereNode) Top ¶ added in v0.11.0
func (n *WhereNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*WhereNode) Where ¶
func (n *WhereNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*WhereNode) Window ¶
func (n *WhereNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.
type WindowNode ¶
type WindowNode struct { // The period, or length in time, of the window. Period time.Duration // How often the current window is emitted into the pipeline. Every time.Duration // Wether to align the window edges with the zero time // tick:ignore AlignFlag bool `tick:"Align"` // contains filtered or unexported fields }
A `window` node caches data within a moving time range. The `period` property of `window` defines the time range covered by `window`.
The `every` property of `window` defines the frequency at which the window is emitted to the next node in the pipeline.
The `align` property of `window` defines how to align the window edges. (By default, the edges are defined relative to the first data point the `window` node receives.)
Example:
stream |window() .period(10m) .every(5m) |httpOut('recent')
his example emits the last `10 minute` period every `5 minutes` to the pipeline's `httpOut` node. Because `every` is less than `period`, each time the window is emitted it contains `5 minutes` of new data and `5 minutes` of the previous period's data.
NOTE: Because no `align` property is defined, the `window` edge is defined relative to the first data point.
func (*WindowNode) Alert ¶
func (n *WindowNode) Alert() *AlertNode
Create an alert node, which can trigger alerts.
func (*WindowNode) Align ¶
func (w *WindowNode) Align() *WindowNode
If the `align` property is not used to modify the `window` node, then the window alignment is assumed to start at the time of the first data point it receives. If `align` property is set, the window time edges will be truncated to the `every` property (For example, if a data point's time is 12:06 and the `every` property is `5m` then the data point's window will range from 12:05 to 12:10). tick:property
func (*WindowNode) Bottom ¶ added in v0.11.0
func (n *WindowNode) Bottom(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the bottom `num` points for `field` and sort by any extra tags or fields.
func (*WindowNode) Combine ¶ added in v1.0.0
func (n *WindowNode) Combine(expressions ...*ast.LambdaNode) *CombineNode
Combine this node with itself. The data are combined on timestamp.
func (*WindowNode) Count ¶ added in v0.11.0
func (n *WindowNode) Count(field string) *InfluxQLNode
Count the number of points.
func (*WindowNode) Default ¶ added in v0.13.0
func (n *WindowNode) Default() *DefaultNode
Create a node that can set defaults for missing tags or fields.
func (*WindowNode) Delete ¶ added in v1.0.0
func (n *WindowNode) Delete() *DeleteNode
Create a node that can delete tags or fields.
func (*WindowNode) Derivative ¶
func (n *WindowNode) Derivative(field string) *DerivativeNode
Create a new node that computes the derivative of adjacent points.
func (*WindowNode) Difference ¶ added in v1.0.0
func (n *WindowNode) Difference(field string) *InfluxQLNode
Compute the difference between points independent of elapsed time.
func (*WindowNode) Distinct ¶ added in v0.11.0
func (n *WindowNode) Distinct(field string) *InfluxQLNode
Produce batch of only the distinct points.
func (*WindowNode) Elapsed ¶ added in v0.13.0
func (n *WindowNode) Elapsed(field string, unit time.Duration) *InfluxQLNode
Compute the elapsed time between points
func (*WindowNode) Eval ¶
func (n *WindowNode) Eval(expressions ...*ast.LambdaNode) *EvalNode
Create an eval node that will evaluate the given transformation function to each data point. A list of expressions may be provided and will be evaluated in the order they are given. The results are available to later expressions.
func (*WindowNode) First ¶ added in v0.11.0
func (n *WindowNode) First(field string) *InfluxQLNode
Select the first point.
func (*WindowNode) Flatten ¶ added in v1.0.0
func (n *WindowNode) Flatten() *FlattenNode
Flatten points with similar times into a single point.
func (*WindowNode) GroupBy ¶
func (n *WindowNode) GroupBy(tag ...interface{}) *GroupByNode
Group the data by a set of tags.
Can pass literal * to group by all dimensions. Example:
|groupBy(*)
func (*WindowNode) HoltWinters ¶ added in v1.0.0
func (n *WindowNode) HoltWinters(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set.
func (*WindowNode) HoltWintersWithFit ¶ added in v1.0.0
func (n *WindowNode) HoltWintersWithFit(field string, h, m int64, interval time.Duration) *InfluxQLNode
Compute the holt-winters forecast of a data set. This method also outputs all the points used to fit the data in addition to the forecasted data.
func (*WindowNode) HttpOut ¶
func (n *WindowNode) HttpOut(endpoint string) *HTTPOutNode
Create an HTTP output node that caches the most recent data it has received. The cached data are available at the given endpoint. The endpoint is the relative path from the API endpoint of the running task. For example, if the task endpoint is at `/kapacitor/v1/tasks/<task_id>` and endpoint is `top10`, then the data can be requested from `/kapacitor/v1/tasks/<task_id>/top10`.
func (*WindowNode) InfluxDBOut ¶
func (n *WindowNode) InfluxDBOut() *InfluxDBOutNode
Create an influxdb output node that will store the incoming data into InfluxDB.
func (*WindowNode) Last ¶ added in v0.11.0
func (n *WindowNode) Last(field string) *InfluxQLNode
Select the last point.
func (*WindowNode) Log ¶ added in v0.11.0
func (n *WindowNode) Log() *LogNode
Create a node that logs all data it receives.
func (*WindowNode) Max ¶ added in v0.11.0
func (n *WindowNode) Max(field string) *InfluxQLNode
Select the maximum point.
func (*WindowNode) Mean ¶ added in v0.11.0
func (n *WindowNode) Mean(field string) *InfluxQLNode
Compute the mean of the data.
func (*WindowNode) Median ¶ added in v0.11.0
func (n *WindowNode) Median(field string) *InfluxQLNode
Compute the median of the data. Note, this method is not a selector, if you want the median point use `.percentile(field, 50.0)`.
func (*WindowNode) Min ¶ added in v0.11.0
func (n *WindowNode) Min(field string) *InfluxQLNode
Select the minimum point.
func (*WindowNode) Mode ¶ added in v1.0.0
func (n *WindowNode) Mode(field string) *InfluxQLNode
Compute the mode of the data.
func (*WindowNode) MovingAverage ¶ added in v1.0.0
func (n *WindowNode) MovingAverage(field string, window int64) *InfluxQLNode
Compute a moving average of the last window points. No points are emitted until the window is full.
func (*WindowNode) Percentile ¶ added in v0.11.0
func (n *WindowNode) Percentile(field string, percentile float64) *InfluxQLNode
Select a point at the given percentile. This is a selector function, no interpolation between points is performed.
func (*WindowNode) Sample ¶
func (n *WindowNode) Sample(rate interface{}) *SampleNode
Create a new node that samples the incoming points or batches.
One point will be emitted every count or duration specified.
func (*WindowNode) Shift ¶ added in v0.11.0
Create a new node that shifts the incoming points or batches in time.
func (*WindowNode) Spread ¶ added in v0.11.0
func (n *WindowNode) Spread(field string) *InfluxQLNode
Compute the difference between `min` and `max` points.
func (*WindowNode) Stddev ¶ added in v0.11.0
func (n *WindowNode) Stddev(field string) *InfluxQLNode
Compute the standard deviation.
func (*WindowNode) Sum ¶ added in v0.11.0
func (n *WindowNode) Sum(field string) *InfluxQLNode
Compute the sum of all values.
func (*WindowNode) Top ¶ added in v0.11.0
func (n *WindowNode) Top(num int64, field string, fieldsAndTags ...string) *InfluxQLNode
Select the top `num` points for `field` and sort by any extra tags or fields.
func (*WindowNode) Where ¶
func (n *WindowNode) Where(expression *ast.LambdaNode) *WhereNode
Create a new node that filters the data stream by a given expression.
func (*WindowNode) Window ¶
func (n *WindowNode) Window() *WindowNode
Create a new node that windows the stream by time.
NOTE: Window can only be applied to stream edges.