storage

package
v0.15.0-rc.6 Latest Latest
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 Go to latest Published: Apr 24, 2020 License: Apache-2.0 Imports: 24 Imported by: 62

Documentation

Overview

Package storage is a generated GoMock package.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func FetchOptionsToAggregateOptions added in v0.8.0 

func FetchOptionsToAggregateOptions(
	fetchOptions *FetchOptions,
	tagQuery *CompleteTagsQuery,
) index.AggregationOptions

FetchOptionsToAggregateOptions converts a set of coordinator options as well as complete tags query to an M3 aggregate query option.

func FetchOptionsToM3Options 

func FetchOptionsToM3Options(fetchOptions *FetchOptions, fetchQuery *FetchQuery) index.QueryOptions

FetchOptionsToM3Options converts a set of coordinator options to M3 options.

func FetchQueryToM3Query 

func FetchQueryToM3Query(
	fetchQuery *FetchQuery,
	options *FetchOptions,
) (index.Query, error)

FetchQueryToM3Query converts an m3coordinator fetch query to an M3 query.

func FetchResultToPromResult 

func FetchResultToPromResult(
	result *FetchResult,
	keepEmpty bool,
) *prompb.QueryResult

FetchResultToPromResult converts fetch results from M3 to Prometheus result.

func FromIdentTagIteratorToTags 

func FromIdentTagIteratorToTags(
	identTags ident.TagIterator,
	tagOptions models.TagOptions,
) (models.Tags, error)

FromIdentTagIteratorToTags converts ident tags to coordinator tags.

func FromM3IdentToMetric 

func FromM3IdentToMetric(
	identID ident.ID,
	iterTags ident.TagIterator,
	tagOptions models.TagOptions,
) (models.Metric, error)

FromM3IdentToMetric converts an M3 ident metric to a coordinator metric.

func IsWarning added in v0.13.0 

func IsWarning(store Storage, err error) (bool, error)

IsWarning determines if the given error coming from the storage is a warning, and returns it with appropriate wrapping.

func PromLabelsToM3Tags 

func PromLabelsToM3Tags(
	labels []prompb.Label,
	tagOptions models.TagOptions,
) models.Tags

PromLabelsToM3Tags converts Prometheus labels to M3 tags

func PromMatcherToM3 

func PromMatcherToM3(matcher *prompb.LabelMatcher) (models.Matcher, error)

PromMatcherToM3 converts a prometheus label matcher to m3 matcher

func PromMatchersToM3 

func PromMatchersToM3(matchers []*prompb.LabelMatcher) (models.Matchers, error)

PromMatchersToM3 converts prometheus label matchers to m3 matchers

func PromSamplesToM3Datapoints 

func PromSamplesToM3Datapoints(samples []prompb.Sample) ts.Datapoints

PromSamplesToM3Datapoints converts Prometheus samples to M3 datapoints

func PromTimestampToTime added in v0.10.0 

func PromTimestampToTime(timestampMS int64) time.Time

PromTimestampToTime converts a prometheus timestamp to time.Time.

func PromTypeToM3 

func PromTypeToM3(labelType prompb.LabelMatcher_Type) (models.MatchType, error)

PromTypeToM3 converts a prometheus label type to m3 matcher type

func SeriesToPromSamples 

func SeriesToPromSamples(series *ts.Series) []prompb.Sample

SeriesToPromSamples series datapoints to prometheus samples.SeriesToPromSamples.

func SeriesToPromTS 

func SeriesToPromTS(series *ts.Series) prompb.TimeSeries

SeriesToPromTS converts a series to prometheus timeseries.

func TagsToIdentTagIterator 

func TagsToIdentTagIterator(tags models.Tags) ident.TagIterator

TagsToIdentTagIterator converts coordinator tags to ident tags.

func TagsToPromLabels 

func TagsToPromLabels(tags models.Tags) []prompb.Label

TagsToPromLabels converts tags to prometheus labels.

func TimeToPromTimestamp added in v0.10.0 

func TimeToPromTimestamp(timestamp time.Time) int64

TimeToPromTimestamp converts a time.Time to prometheus timestamp.

func ValidateMetricsType 

func ValidateMetricsType(v MetricsType) error

ValidateMetricsType validates a stored metrics type.

Types

type Appender 

type Appender interface {
	// Write writes a batched set of datapoints to storage based on the provided
	// query.
	Write(ctx context.Context, query *WriteQuery) error
}

Appender provides batched appends against a storage.

type Attributes 

type Attributes struct {
	// MetricsType indicates the type of namespace this metric originated from.
	MetricsType MetricsType
	// Retention indicates the retention of the namespace this metric originated
	// from.
	Retention time.Duration
	// Resolution indicates the retention of the namespace this metric originated
	// from.
	Resolution time.Duration
}

Attributes is a set of stored metrics attributes.

type CompleteTagsQuery added in v0.4.8 

type CompleteTagsQuery struct {
	// CompleteNameOnly indicates if the query should return only tag names, or
	// tag names and values.
	CompleteNameOnly bool
	// FilterNameTags is a list of tags to filter results by. If this is empty, no
	// filtering is applied.
	FilterNameTags [][]byte
	// TagMatchers is the search criteria for the query.
	TagMatchers models.Matchers
	// Start is the inclusive start for the query.
	Start time.Time
	// End is the exclusive end for the query.
	End time.Time
}

CompleteTagsQuery represents a query that returns an autocompleted set of tags.

func (*CompleteTagsQuery) String added in v0.4.8 

func (q *CompleteTagsQuery) String() string

type CompleteTagsResult added in v0.4.8 

type CompleteTagsResult struct {
	// CompleteNameOnly indicates if the tags in this result are expected to have
	// both names and values, or only names.
	CompleteNameOnly bool
	// CompletedTag is a list of completed tags.
	CompletedTags []CompletedTag
	// Metadata describes any metadata for the operation.
	Metadata block.ResultMetadata
}

CompleteTagsResult represents a set of autocompleted tag names and values

type CompleteTagsResultBuilder added in v0.4.8 

type CompleteTagsResultBuilder interface {
	// Add appends an incoming CompleteTagsResult.
	Add(*CompleteTagsResult) error
	// Build builds a completed tag result.
	Build() CompleteTagsResult
}

CompleteTagsResultBuilder is a builder that accumulates and deduplicates incoming CompleteTagsResult values.

func NewCompleteTagsResultBuilder added in v0.4.8 

func NewCompleteTagsResultBuilder(
	nameOnly bool,
) CompleteTagsResultBuilder

NewCompleteTagsResultBuilder creates a new complete tags result builder.

type CompletedTag added in v0.4.8 

type CompletedTag struct {
	// Name the name of the tag.
	Name []byte
	// Values is a set of possible values for the tag.
	// NB: if the parent CompleteTagsResult is set to CompleteNameOnly, this is
	// expected to be empty.
	Values [][]byte
}

CompletedTag represents a tag retrieved by a complete tags query.

type ErrorBehavior added in v0.13.0 

type ErrorBehavior uint8

ErrorBehavior describes what this storage type should do on error. This is used for determining how to proceed when encountering an error in a fanout storage situation. 

const (
	// BehaviorFail is for storages that should fail the entire query when queries
	// against this storage fail.
	BehaviorFail ErrorBehavior = iota
	// BehaviorWarn is for storages that should only warn of incomplete results on
	// failure.
	BehaviorWarn
	// BehaviorContainer is for storages that contain substorages. It is necessary
	// to look at the returned error to determine if it's a failing error or
	// a warning error.
	BehaviorContainer
)

func ParseErrorBehavior added in v0.13.0 

func ParseErrorBehavior(str string) (ErrorBehavior, error)

ParseErrorBehavior parses an error behavior.

func (ErrorBehavior) String added in v0.13.0 

func (e ErrorBehavior) String() string

func (*ErrorBehavior) UnmarshalYAML added in v0.13.0 

func (e *ErrorBehavior) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML unmarshals an error behavior.

type FanoutOption added in v0.5.0 

type FanoutOption uint

FanoutOption describes the fanout option. 

const (
	// FanoutDefault defaults to the fanout option.
	FanoutDefault FanoutOption = iota
	// FanoutForceDisable forces disabling fanout.
	FanoutForceDisable
	// FanoutForceEnable forces enabling fanout.
	FanoutForceEnable
)

type FanoutOptions added in v0.5.0 

type FanoutOptions struct {
	// FanoutUnaggregated describes the fanout options for
	// unaggregated namespaces.
	FanoutUnaggregated FanoutOption
	// FanoutAggregated describes the fanout options for
	// aggregated namespaces.
	FanoutAggregated FanoutOption
	// FanoutAggregatedOptimized describes the fanout options for the
	// aggregated namespace optimization.
	FanoutAggregatedOptimized FanoutOption
}

FanoutOptions describes which namespaces should be fanned out to for the query.

type FetchOptions 

type FetchOptions struct {
	// Remote is set when this fetch is originated by a remote grpc call.
	Remote bool
	// Limit is the maximum number of series to return.
	Limit int
	// BlockType is the block type that the fetch function returns.
	BlockType models.FetchedBlockType
	// FanoutOptions are the options for the fetch namespace fanout.
	FanoutOptions *FanoutOptions
	// RestrictQueryOptions restricts the fetch to a specific set of
	// conditions.
	RestrictQueryOptions *RestrictQueryOptions
	// Step is the configured step size.
	Step time.Duration
	// LookbackDuration if set overrides the default lookback duration.
	LookbackDuration *time.Duration
	// Enforcer is used to enforce resource limits on the number of datapoints
	// used by a given query. Limits are imposed at time of decompression.
	Enforcer cost.ChainedEnforcer
	// Scope is used to report metrics about the fetch.
	Scope tally.Scope
	// IncludeResolution if set, appends resolution information to fetch results.
	// Currently only used for graphite queries.
	IncludeResolution bool
	// Timeout is the timeout for the request.
	Timeout time.Duration
}

FetchOptions represents the options for fetch query.

func NewFetchOptions added in v0.4.8 

func NewFetchOptions() *FetchOptions

NewFetchOptions creates a new fetch options.

func (*FetchOptions) Clone added in v0.9.2 

func (o *FetchOptions) Clone() *FetchOptions

Clone will clone and return the fetch options.

func (*FetchOptions) LookbackDurationOrDefault added in v0.11.0 

func (o *FetchOptions) LookbackDurationOrDefault(
	defaultValue time.Duration,
) time.Duration

LookbackDurationOrDefault returns either the default lookback duration or overridden lookback duration if set.

func (*FetchOptions) QueryFetchOptions added in v0.11.0 

func (o *FetchOptions) QueryFetchOptions(
	queryCtx *models.QueryContext,
	blockType models.FetchedBlockType,
) (*FetchOptions, error)

QueryFetchOptions returns fetch options for a given query.

type FetchQuery 

type FetchQuery struct {
	Raw         string
	TagMatchers models.Matchers `json:"matchers"`
	Start       time.Time       `json:"start"`
	End         time.Time       `json:"end"`
	Interval    time.Duration   `json:"interval"`
}

FetchQuery represents the input query which is fetched from M3DB.

func PromReadQueryToM3 

func PromReadQueryToM3(query *prompb.Query) (*FetchQuery, error)

PromReadQueryToM3 converts a prometheus read query to m3 read query

func (*FetchQuery) String 

func (q *FetchQuery) String() string

func (*FetchQuery) WithAppliedOptions added in v0.15.0 

func (q *FetchQuery) WithAppliedOptions(
	opts *FetchOptions,
) *FetchQuery

WithAppliedOptions returns a copy of the fetch query applied options that restricts the fetch with respect to labels that must be applied.

type FetchResult 

type FetchResult struct {
	// SeriesList is the list of decompressed and computed series after fetch
	// query execution.
	SeriesList ts.SeriesList
	// Metadata describes any metadata for the operation.
	Metadata block.ResultMetadata
}

FetchResult provides a decompressed fetch result and meta information.

type MetricsType 

type MetricsType uint

MetricsType is a type of stored metrics. 

const (
	// UnknownMetricsType is the unknown metrics type and is invalid.
	UnknownMetricsType MetricsType = iota
	// UnaggregatedMetricsType is an unaggregated metrics type.
	UnaggregatedMetricsType
	// AggregatedMetricsType is an aggregated metrics type.
	AggregatedMetricsType

	// DefaultMetricsType is the default metrics type value.
	DefaultMetricsType = UnaggregatedMetricsType
)

func ParseMetricsType added in v0.11.0 

func ParseMetricsType(str string) (MetricsType, error)

ParseMetricsType parses a metric type.

func (MetricsType) String 

func (t MetricsType) String() string

func (*MetricsType) UnmarshalYAML 

func (t *MetricsType) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML unmarshals a stored merics type.

type MockStorage added in v0.8.0 

type MockStorage struct {
	// contains filtered or unexported fields
}

MockStorage is a mock of Storage interface

func NewMockStorage added in v0.8.0 

func NewMockStorage(ctrl *gomock.Controller) *MockStorage

NewMockStorage creates a new mock instance

func (*MockStorage) Close added in v0.8.0 

func (m *MockStorage) Close() error

Close mocks base method

func (*MockStorage) CompleteTags added in v0.8.0 

func (m *MockStorage) CompleteTags(arg0 context.Context, arg1 *CompleteTagsQuery, arg2 *FetchOptions) (*CompleteTagsResult, error)

CompleteTags mocks base method

func (*MockStorage) EXPECT added in v0.8.0 

func (m *MockStorage) EXPECT() *MockStorageMockRecorder

EXPECT returns an object that allows the caller to indicate expected use

func (*MockStorage) ErrorBehavior added in v0.13.0 

func (m *MockStorage) ErrorBehavior() ErrorBehavior

ErrorBehavior mocks base method

func (*MockStorage) FetchBlocks added in v0.8.0 

func (m *MockStorage) FetchBlocks(arg0 context.Context, arg1 *FetchQuery, arg2 *FetchOptions) (block.Result, error)

FetchBlocks mocks base method

func (*MockStorage) FetchProm added in v0.15.0 

func (m *MockStorage) FetchProm(arg0 context.Context, arg1 *FetchQuery, arg2 *FetchOptions) (PromResult, error)

FetchProm mocks base method

func (*MockStorage) Name added in v0.13.0 

func (m *MockStorage) Name() string

Name mocks base method

func (*MockStorage) SearchSeries added in v0.8.0 

func (m *MockStorage) SearchSeries(arg0 context.Context, arg1 *FetchQuery, arg2 *FetchOptions) (*SearchResults, error)

SearchSeries mocks base method

func (*MockStorage) Type added in v0.8.0 

func (m *MockStorage) Type() Type

Type mocks base method

func (*MockStorage) Write added in v0.8.0 

func (m *MockStorage) Write(arg0 context.Context, arg1 *WriteQuery) error

Write mocks base method

type MockStorageMockRecorder added in v0.8.0 

type MockStorageMockRecorder struct {
	// contains filtered or unexported fields
}

MockStorageMockRecorder is the mock recorder for MockStorage

func (*MockStorageMockRecorder) Close added in v0.8.0 

func (mr *MockStorageMockRecorder) Close() *gomock.Call

Close indicates an expected call of Close

func (*MockStorageMockRecorder) CompleteTags added in v0.8.0 

func (mr *MockStorageMockRecorder) CompleteTags(arg0, arg1, arg2 interface{}) *gomock.Call

CompleteTags indicates an expected call of CompleteTags

func (*MockStorageMockRecorder) ErrorBehavior added in v0.13.0 

func (mr *MockStorageMockRecorder) ErrorBehavior() *gomock.Call

ErrorBehavior indicates an expected call of ErrorBehavior

func (*MockStorageMockRecorder) FetchBlocks added in v0.8.0 

func (mr *MockStorageMockRecorder) FetchBlocks(arg0, arg1, arg2 interface{}) *gomock.Call

FetchBlocks indicates an expected call of FetchBlocks

func (*MockStorageMockRecorder) FetchProm added in v0.15.0 

func (mr *MockStorageMockRecorder) FetchProm(arg0, arg1, arg2 interface{}) *gomock.Call

FetchProm indicates an expected call of FetchProm

func (*MockStorageMockRecorder) Name added in v0.13.0 

func (mr *MockStorageMockRecorder) Name() *gomock.Call

Name indicates an expected call of Name

func (*MockStorageMockRecorder) SearchSeries added in v0.8.0 

func (mr *MockStorageMockRecorder) SearchSeries(arg0, arg1, arg2 interface{}) *gomock.Call

SearchSeries indicates an expected call of SearchSeries

func (*MockStorageMockRecorder) Type added in v0.8.0 

func (mr *MockStorageMockRecorder) Type() *gomock.Call

Type indicates an expected call of Type

func (*MockStorageMockRecorder) Write added in v0.8.0 

func (mr *MockStorageMockRecorder) Write(arg0, arg1 interface{}) *gomock.Call

Write indicates an expected call of Write

type PromResult added in v0.15.0 

type PromResult struct {
	// PromResult is the result, in Prometheus protobuf format.
	PromResult *prompb.QueryResult
	// ResultMetadata is the metadata for the result.
	Metadata block.ResultMetadata
}

PromResult is a Prometheus-compatible result type.

func SeriesIteratorsToPromResult added in v0.15.0 

func SeriesIteratorsToPromResult(
	seriesIterators encoding.SeriesIterators,
	readWorkerPool xsync.PooledWorkerPool,
	metadata block.ResultMetadata,
	enforcer cost.ChainedEnforcer,
	tagOptions models.TagOptions,
) (PromResult, error)

SeriesIteratorsToPromResult converts raw series iterators directly to a Prometheus-compatible result.

type Querier 

type Querier interface {
	// FetchProm fetches decompressed timeseries data based on a query in a
	// Prometheus-compatible format.
	// TODO: take in an accumulator of some sort rather than returning
	// necessarily as a Prom result.
	FetchProm(
		ctx context.Context,
		query *FetchQuery,
		options *FetchOptions,
	) (PromResult, error)

	// FetchBlocks fetches timeseries as blocks based on a query.
	FetchBlocks(
		ctx context.Context,
		query *FetchQuery,
		options *FetchOptions,
	) (block.Result, error)

	// SearchSeries returns series IDs matching the current query.
	SearchSeries(
		ctx context.Context,
		query *FetchQuery,
		options *FetchOptions,
	) (*SearchResults, error)

	// CompleteTags returns autocompleted tag results.
	CompleteTags(
		ctx context.Context,
		query *CompleteTagsQuery,
		options *FetchOptions,
	) (*CompleteTagsResult, error)
}

Querier handles queries against a storage.

type Query 

type Query interface {
	fmt.Stringer
	// contains filtered or unexported methods
}

Query is an interface for a M3DB query.

type RestrictByTag added in v0.15.0 

type RestrictByTag struct {
	// Restrict is a set of override matchers to apply to a fetch
	// regardless of the existing fetch matchers, they should replace any
	// existing matchers part of a fetch if they collide.
	Restrict models.Matchers
	// Strip is a set of tag names to strip from the response.
	//
	// NB: If this is unset, but Restrict is set, all tag names appearing in any
	// of the Restrict matchers are removed.
	Strip [][]byte
}

RestrictByTag are specific restrictions to enforce behavior for given tags.

func (*RestrictByTag) GetFilterByNames added in v0.15.0 

func (o *RestrictByTag) GetFilterByNames() [][]byte

GetFilterByNames returns the tag names to filter out of the response.

func (*RestrictByTag) GetMatchers added in v0.15.0 

func (o *RestrictByTag) GetMatchers() models.Matchers

GetMatchers provides the tag matchers by which results are restricted if present; nil otherwise.

type RestrictByType added in v0.15.0 

type RestrictByType struct {
	// MetricsType restricts the type of metrics being returned.
	MetricsType MetricsType
	// StoragePolicy is required if metrics type is not unaggregated
	// to specify which storage policy metrics should be returned from.
	StoragePolicy policy.StoragePolicy
}

RestrictByType are specific restrictions to stick to a single data type.

func (*RestrictByType) Validate added in v0.15.0 

func (o *RestrictByType) Validate() error

Validate will validate the restrict type restrictions.

type RestrictQueryOptions added in v0.15.0 

type RestrictQueryOptions struct {
	// RestrictByType are specific restrictions to stick to a single data type.
	RestrictByType *RestrictByType
	// RestrictByTag are specific restrictions to enforce behavior for given
	// tags.
	RestrictByTag *RestrictByTag
}

RestrictQueryOptions restricts the query to a specific set of conditions.

func (*RestrictQueryOptions) GetRestrictByTag added in v0.15.0 

func (o *RestrictQueryOptions) GetRestrictByTag() *RestrictByTag

GetRestrictByTag provides the tag restrictions if present; nil otherwise.

func (*RestrictQueryOptions) GetRestrictByType added in v0.15.0 

func (o *RestrictQueryOptions) GetRestrictByType() *RestrictByType

GetRestrictByType provides the type restrictions if present; nil otherwise.

func (*RestrictQueryOptions) Validate added in v0.15.0 

func (o *RestrictQueryOptions) Validate() error

Validate will validate the restrict fetch options.

type SearchResults 

type SearchResults struct {
	// Metrics is the list of search results.
	Metrics models.Metrics
	// Metadata describes any metadata for the Fetch operation.
	Metadata block.ResultMetadata
}

SearchResults is the result from a search.

type SeriesMatchQuery added in v0.5.0 

type SeriesMatchQuery struct {
	// TagMatchers is the search criteria for the query.
	TagMatchers []models.Matchers
	// Start is the inclusive start for the query.
	Start time.Time
	// End is the exclusive end for the query.
	End time.Time
}

SeriesMatchQuery represents a query that returns a set of series that match the query.

type Storage 

type Storage interface {
	Querier
	Appender
	// Type identifies the type of the underlying storage.
	Type() Type
	// Close is used to close the underlying storage and free up resources.
	Close() error
	// ErrorBehavior dictates what fanout storage should do when this storage
	// encounters an error.
	ErrorBehavior() ErrorBehavior
	// Name gives the plaintext name for this storage, used for logging purposes.
	Name() string
}

Storage provides an interface for reading and writing to the tsdb.

func NewNoopStorage added in v0.15.0 

func NewNoopStorage() Storage

NewNoopStorage returns a fake implementation of Storage that rejects all writes and returns errors for all queries.

type Type 

type Type int

Type describes the type of storage. 

const (
	// TypeLocalDC is for storages that reside in the local datacenter.
	TypeLocalDC Type = iota
	// TypeRemoteDC is for storages that reside in a remote datacenter.
	TypeRemoteDC
	// TypeMultiDC is for storages that will aggregate multiple datacenters.
	TypeMultiDC
	// TypeDebug is for storages that are used for debugging purposes.
	TypeDebug
)

type WriteQuery 

type WriteQuery struct {
	Tags       models.Tags
	Datapoints ts.Datapoints
	Unit       xtime.Unit
	Annotation []byte
	Attributes Attributes
}

WriteQuery represents the input timeseries that is written to the database. TODO: rename WriteQuery to WriteRequest or something similar.

func (*WriteQuery) String 

func (q *WriteQuery) String() string

Source Files

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Directories

Path Synopsis
Package m3 is a generated GoMock package.
 Package m3 is a generated GoMock package.

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