tripperware

package
v1.18.1 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Oct 15, 2024 License: Apache-2.0 Imports: 46 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	MaxStep = 11000
)
View Source 
const QueryRejectErrorMessage = "This query does not perform well and has been rejected by the service operator."

Variables

View Source 
var (
	ErrInvalidLengthQuery = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowQuery   = fmt.Errorf("proto: integer overflow")
)
View Source 
var (
	ErrSubQueryStepTooSmall = "exceeded maximum resolution of %d points per timeseries in subquery. Try increasing the step size of your subquery"
)

Functions

func BodyBuffer 

func BodyBuffer(res *http.Response, logger log.Logger) ([]byte, error)

func BodyBufferFromHTTPGRPCResponse added in v1.16.0 

func BodyBufferFromHTTPGRPCResponse(res *httpgrpc.HTTPResponse, logger log.Logger) ([]byte, error)

func EncodeTime 

func EncodeTime(t int64) string

func MarshalSampleHistogramPairJSON added in v1.18.0 

func MarshalSampleHistogramPairJSON(ptr unsafe.Pointer, stream *jsoniter.Stream)

Adapted from https://github.com/prometheus/client_golang/blob/4b158abea9470f75b6f07460cdc2189b91914562/api/prometheus/v1/api.go#L137.

func MergeSampleStreams 

func MergeSampleStreams(output map[string]SampleStream, sampleStreams []SampleStream)

MergeSampleStreams deduplicates sample streams using a map.

func NewRoundTripper 

func NewRoundTripper(next http.RoundTripper, codec Codec, headers []string, middlewares ...Middleware) http.RoundTripper

NewRoundTripper merges a set of middlewares into an handler, then inject it into the `next` roundtripper using the codec to translate requests and responses.

func PrometheusResponseQueryableSamplesStatsPerStepJsoniterDecode 

func PrometheusResponseQueryableSamplesStatsPerStepJsoniterDecode(ptr unsafe.Pointer, iter *jsoniter.Iterator)

func PrometheusResponseQueryableSamplesStatsPerStepJsoniterEncode 

func PrometheusResponseQueryableSamplesStatsPerStepJsoniterEncode(ptr unsafe.Pointer, stream *jsoniter.Stream)

func SubQueryStepSizeCheck added in v1.16.0 

func SubQueryStepSizeCheck(query string, defaultSubQueryInterval time.Duration, maxStep int64) error

SubQueryStepSizeCheck ensures the query doesn't contain too small step size in subqueries.

func TestQueryShardQuery 

func TestQueryShardQuery(t *testing.T, instantQueryCodec Codec, shardedPrometheusCodec Codec)

func UnmarshalSampleHistogramPairJSON added in v1.18.0 

func UnmarshalSampleHistogramPairJSON(ptr unsafe.Pointer, iter *jsoniter.Iterator)

Adapted from https://github.com/prometheus/client_golang/blob/4b158abea9470f75b6f07460cdc2189b91914562/api/prometheus/v1/api.go#L84.

Types

type Buffer 

type Buffer interface {
	Bytes() []byte
}

Buffer can be used to read a response body. This allows to avoid reading the body multiple times from the `http.Response.Body`.

type Codec 

type Codec interface {
	Merger
	// DecodeRequest decodes a Request from an http request.
	DecodeRequest(_ context.Context, request *http.Request, forwardHeaders []string) (Request, error)
	// DecodeResponse decodes a Response from an http response.
	// The original request is also passed as a parameter this is useful for implementation that needs the request
	// to merge result or build the result correctly.
	DecodeResponse(context.Context, *http.Response, Request) (Response, error)
	// EncodeRequest encodes a Request into an http request.
	EncodeRequest(context.Context, Request) (*http.Request, error)
	// EncodeResponse encodes a Response into an http response.
	EncodeResponse(context.Context, Response) (*http.Response, error)
}

Codec is used to encode/decode query range requests and responses so they can be passed down to middlewares.

type Handler 

type Handler interface {
	Do(context.Context, Request) (Response, error)
}

Handler is like http.Handle, but specifically for Prometheus query_range calls.

type HandlerFunc 

type HandlerFunc func(context.Context, Request) (Response, error)

HandlerFunc is like http.HandlerFunc, but for Handler.

func (HandlerFunc) Do 

func (q HandlerFunc) Do(ctx context.Context, req Request) (Response, error)

Do implements Handler.

type HistogramBucket added in v1.18.0 

type HistogramBucket struct {
	Boundaries int32   `protobuf:"varint,1,opt,name=boundaries,proto3" json:"boundaries,omitempty"`
	Lower      float64 `protobuf:"fixed64,2,opt,name=lower,proto3" json:"lower,omitempty"`
	Upper      float64 `protobuf:"fixed64,3,opt,name=upper,proto3" json:"upper,omitempty"`
	Count      float64 `protobuf:"fixed64,4,opt,name=count,proto3" json:"count,omitempty"`
}

func (*HistogramBucket) Descriptor added in v1.18.0 

func (*HistogramBucket) Descriptor() ([]byte, []int)

func (*HistogramBucket) Equal added in v1.18.0 

func (this *HistogramBucket) Equal(that interface{}) bool

func (*HistogramBucket) GetBoundaries added in v1.18.0 

func (m *HistogramBucket) GetBoundaries() int32

func (*HistogramBucket) GetCount added in v1.18.0 

func (m *HistogramBucket) GetCount() float64

func (*HistogramBucket) GetLower added in v1.18.0 

func (m *HistogramBucket) GetLower() float64

func (*HistogramBucket) GetUpper added in v1.18.0 

func (m *HistogramBucket) GetUpper() float64

func (*HistogramBucket) GoString added in v1.18.0 

func (this *HistogramBucket) GoString() string

func (*HistogramBucket) Marshal added in v1.18.0 

func (m *HistogramBucket) Marshal() (dAtA []byte, err error)

func (*HistogramBucket) MarshalTo added in v1.18.0 

func (m *HistogramBucket) MarshalTo(dAtA []byte) (int, error)

func (*HistogramBucket) MarshalToSizedBuffer added in v1.18.0 

func (m *HistogramBucket) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*HistogramBucket) ProtoMessage added in v1.18.0 

func (*HistogramBucket) ProtoMessage()

func (*HistogramBucket) Reset added in v1.18.0 

func (m *HistogramBucket) Reset()

func (*HistogramBucket) Size added in v1.18.0 

func (m *HistogramBucket) Size() (n int)

func (*HistogramBucket) String added in v1.18.0 

func (this *HistogramBucket) String() string

func (*HistogramBucket) Unmarshal added in v1.18.0 

func (m *HistogramBucket) Unmarshal(dAtA []byte) error

func (*HistogramBucket) XXX_DiscardUnknown added in v1.18.0 

func (m *HistogramBucket) XXX_DiscardUnknown()

func (*HistogramBucket) XXX_Marshal added in v1.18.0 

func (m *HistogramBucket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*HistogramBucket) XXX_Merge added in v1.18.0 

func (m *HistogramBucket) XXX_Merge(src proto.Message)

func (*HistogramBucket) XXX_Size added in v1.18.0 

func (m *HistogramBucket) XXX_Size() int

func (*HistogramBucket) XXX_Unmarshal added in v1.18.0 

func (m *HistogramBucket) XXX_Unmarshal(b []byte) error

type InstrumentMiddlewareMetrics 

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

InstrumentMiddlewareMetrics holds the metrics tracked by InstrumentMiddleware.

func NewInstrumentMiddlewareMetrics 

func NewInstrumentMiddlewareMetrics(registerer prometheus.Registerer) *InstrumentMiddlewareMetrics

NewInstrumentMiddlewareMetrics makes a new InstrumentMiddlewareMetrics.

type Limits 

type Limits interface {
	// MaxQueryLookback returns the max lookback period of queries.
	MaxQueryLookback(userID string) time.Duration

	// MaxQueryLength returns the limit of the length (in time) of a query.
	MaxQueryLength(string) time.Duration

	// MaxQueryParallelism returns the limit to the number of split queries the
	// frontend will process in parallel.
	MaxQueryParallelism(string) int

	// MaxCacheFreshness returns the period after which results are cacheable,
	// to prevent caching of very recent results.
	MaxCacheFreshness(string) time.Duration

	// QueryVerticalShardSize returns the maximum number of queriers that can handle requests for this user.
	QueryVerticalShardSize(userID string) int

	// QueryPriority returns the query priority config for the tenant, including different priorities and their attributes.
	QueryPriority(userID string) validation.QueryPriority

	QueryRejection(userID string) validation.QueryRejection
}

Limits allows us to specify per-tenant runtime limits on the behavior of the query handling code.

type Merger 

type Merger interface {
	// MergeResponse merges responses from multiple requests into a single Response
	MergeResponse(context.Context, Request, ...Response) (Response, error)
}

Merger is used by middlewares making multiple requests to merge back all responses into a single one.

type Middleware 

type Middleware interface {
	Wrap(Handler) Handler
}

Middleware is a higher order Handler.

func InstrumentMiddleware 

func InstrumentMiddleware(name string, metrics *InstrumentMiddlewareMetrics) Middleware

InstrumentMiddleware can be inserted into the middleware chain to expose timing information.

func MergeMiddlewares 

func MergeMiddlewares(middleware ...Middleware) Middleware

MergeMiddlewares produces a middleware that applies multiple middleware in turn; ie Merge(f,g,h).Wrap(handler) == f.Wrap(g.Wrap(h.Wrap(handler)))

func ShardByMiddleware 

func ShardByMiddleware(logger log.Logger, limits Limits, merger Merger, queryAnalyzer querysharding.Analyzer) Middleware

type MiddlewareFunc 

type MiddlewareFunc func(Handler) Handler

MiddlewareFunc is like http.HandlerFunc, but for Middleware.

func (MiddlewareFunc) Wrap 

func (q MiddlewareFunc) Wrap(h Handler) Handler

Wrap implements Middleware.

type NoopCollector 

type NoopCollector struct{}

NoopCollector is a noop collector that can be used as placeholder when no metric should tracked by the instrumentation.

func (*NoopCollector) After 

func (c *NoopCollector) After(ctx context.Context, method, statusCode string, start time.Time)

After implements instrument.Collector.

func (*NoopCollector) Before 

func (c *NoopCollector) Before(ctx context.Context, method string, start time.Time)

Before implements instrument.Collector.

func (*NoopCollector) Register 

func (c *NoopCollector) Register()

Register implements instrument.Collector.

type PrometheusRequestHeader 

type PrometheusRequestHeader struct {
	Name   string   `protobuf:"bytes,1,opt,name=Name,proto3" json:"-"`
	Values []string `protobuf:"bytes,2,rep,name=Values,proto3" json:"-"`
}

func (*PrometheusRequestHeader) Descriptor 

func (*PrometheusRequestHeader) Descriptor() ([]byte, []int)

func (*PrometheusRequestHeader) Equal 

func (this *PrometheusRequestHeader) Equal(that interface{}) bool

func (*PrometheusRequestHeader) GetName 

func (m *PrometheusRequestHeader) GetName() string

func (*PrometheusRequestHeader) GetValues 

func (m *PrometheusRequestHeader) GetValues() []string

func (*PrometheusRequestHeader) GoString 

func (this *PrometheusRequestHeader) GoString() string

func (*PrometheusRequestHeader) Marshal 

func (m *PrometheusRequestHeader) Marshal() (dAtA []byte, err error)

func (*PrometheusRequestHeader) MarshalTo 

func (m *PrometheusRequestHeader) MarshalTo(dAtA []byte) (int, error)

func (*PrometheusRequestHeader) MarshalToSizedBuffer 

func (m *PrometheusRequestHeader) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*PrometheusRequestHeader) ProtoMessage 

func (*PrometheusRequestHeader) ProtoMessage()

func (*PrometheusRequestHeader) Reset 

func (m *PrometheusRequestHeader) Reset()

func (*PrometheusRequestHeader) Size 

func (m *PrometheusRequestHeader) Size() (n int)

func (*PrometheusRequestHeader) String 

func (this *PrometheusRequestHeader) String() string

func (*PrometheusRequestHeader) Unmarshal 

func (m *PrometheusRequestHeader) Unmarshal(dAtA []byte) error

func (*PrometheusRequestHeader) XXX_DiscardUnknown 

func (m *PrometheusRequestHeader) XXX_DiscardUnknown()

func (*PrometheusRequestHeader) XXX_Marshal 

func (m *PrometheusRequestHeader) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*PrometheusRequestHeader) XXX_Merge 

func (m *PrometheusRequestHeader) XXX_Merge(src proto.Message)

func (*PrometheusRequestHeader) XXX_Size 

func (m *PrometheusRequestHeader) XXX_Size() int

func (*PrometheusRequestHeader) XXX_Unmarshal 

func (m *PrometheusRequestHeader) XXX_Unmarshal(b []byte) error

type PrometheusResponseHeader 

type PrometheusResponseHeader struct {
	Name   string   `protobuf:"bytes,1,opt,name=Name,proto3" json:"-"`
	Values []string `protobuf:"bytes,2,rep,name=Values,proto3" json:"-"`
}

func (*PrometheusResponseHeader) Descriptor 

func (*PrometheusResponseHeader) Descriptor() ([]byte, []int)

func (*PrometheusResponseHeader) Equal 

func (this *PrometheusResponseHeader) Equal(that interface{}) bool

func (*PrometheusResponseHeader) GetName 

func (m *PrometheusResponseHeader) GetName() string

func (*PrometheusResponseHeader) GetValues 

func (m *PrometheusResponseHeader) GetValues() []string

func (*PrometheusResponseHeader) GoString 

func (this *PrometheusResponseHeader) GoString() string

func (*PrometheusResponseHeader) Marshal 

func (m *PrometheusResponseHeader) Marshal() (dAtA []byte, err error)

func (*PrometheusResponseHeader) MarshalTo 

func (m *PrometheusResponseHeader) MarshalTo(dAtA []byte) (int, error)

func (*PrometheusResponseHeader) MarshalToSizedBuffer 

func (m *PrometheusResponseHeader) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*PrometheusResponseHeader) ProtoMessage 

func (*PrometheusResponseHeader) ProtoMessage()

func (*PrometheusResponseHeader) Reset 

func (m *PrometheusResponseHeader) Reset()

func (*PrometheusResponseHeader) Size 

func (m *PrometheusResponseHeader) Size() (n int)

func (*PrometheusResponseHeader) String 

func (this *PrometheusResponseHeader) String() string

func (*PrometheusResponseHeader) Unmarshal 

func (m *PrometheusResponseHeader) Unmarshal(dAtA []byte) error

func (*PrometheusResponseHeader) XXX_DiscardUnknown 

func (m *PrometheusResponseHeader) XXX_DiscardUnknown()

func (*PrometheusResponseHeader) XXX_Marshal 

func (m *PrometheusResponseHeader) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*PrometheusResponseHeader) XXX_Merge 

func (m *PrometheusResponseHeader) XXX_Merge(src proto.Message)

func (*PrometheusResponseHeader) XXX_Size 

func (m *PrometheusResponseHeader) XXX_Size() int

func (*PrometheusResponseHeader) XXX_Unmarshal 

func (m *PrometheusResponseHeader) XXX_Unmarshal(b []byte) error

type PrometheusResponseQueryableSamplesStatsPerStep 

type PrometheusResponseQueryableSamplesStatsPerStep struct {
	Value       int64 `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
	TimestampMs int64 `protobuf:"varint,2,opt,name=timestamp_ms,json=timestampMs,proto3" json:"timestamp_ms,omitempty"`
}

func (*PrometheusResponseQueryableSamplesStatsPerStep) Descriptor 

func (*PrometheusResponseQueryableSamplesStatsPerStep) Descriptor() ([]byte, []int)

func (*PrometheusResponseQueryableSamplesStatsPerStep) Equal 

func (this *PrometheusResponseQueryableSamplesStatsPerStep) Equal(that interface{}) bool

func (*PrometheusResponseQueryableSamplesStatsPerStep) GetTimestampMs 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) GetTimestampMs() int64

func (*PrometheusResponseQueryableSamplesStatsPerStep) GetValue 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) GetValue() int64

func (*PrometheusResponseQueryableSamplesStatsPerStep) GoString 

func (this *PrometheusResponseQueryableSamplesStatsPerStep) GoString() string

func (*PrometheusResponseQueryableSamplesStatsPerStep) Marshal 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) Marshal() (dAtA []byte, err error)

func (*PrometheusResponseQueryableSamplesStatsPerStep) MarshalTo 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) MarshalTo(dAtA []byte) (int, error)

func (*PrometheusResponseQueryableSamplesStatsPerStep) MarshalToSizedBuffer 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*PrometheusResponseQueryableSamplesStatsPerStep) ProtoMessage 

func (*PrometheusResponseQueryableSamplesStatsPerStep) ProtoMessage()

func (*PrometheusResponseQueryableSamplesStatsPerStep) Reset 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) Reset()

func (*PrometheusResponseQueryableSamplesStatsPerStep) Size 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) Size() (n int)

func (*PrometheusResponseQueryableSamplesStatsPerStep) String 

func (this *PrometheusResponseQueryableSamplesStatsPerStep) String() string

func (*PrometheusResponseQueryableSamplesStatsPerStep) Unmarshal 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) Unmarshal(dAtA []byte) error

func (*PrometheusResponseQueryableSamplesStatsPerStep) XXX_DiscardUnknown 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) XXX_DiscardUnknown()

func (*PrometheusResponseQueryableSamplesStatsPerStep) XXX_Marshal 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*PrometheusResponseQueryableSamplesStatsPerStep) XXX_Merge 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) XXX_Merge(src proto.Message)

func (*PrometheusResponseQueryableSamplesStatsPerStep) XXX_Size 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) XXX_Size() int

func (*PrometheusResponseQueryableSamplesStatsPerStep) XXX_Unmarshal 

func (m *PrometheusResponseQueryableSamplesStatsPerStep) XXX_Unmarshal(b []byte) error

type PrometheusResponseSamplesStats 

type PrometheusResponseSamplesStats struct {
	TotalQueryableSamples        int64                                             `protobuf:"varint,1,opt,name=totalQueryableSamples,proto3" json:"totalQueryableSamples"`
	TotalQueryableSamplesPerStep []*PrometheusResponseQueryableSamplesStatsPerStep `protobuf:"bytes,2,rep,name=totalQueryableSamplesPerStep,proto3" json:"totalQueryableSamplesPerStep"`
}

func (*PrometheusResponseSamplesStats) Descriptor 

func (*PrometheusResponseSamplesStats) Descriptor() ([]byte, []int)

func (*PrometheusResponseSamplesStats) Equal 

func (this *PrometheusResponseSamplesStats) Equal(that interface{}) bool

func (*PrometheusResponseSamplesStats) GetTotalQueryableSamples 

func (m *PrometheusResponseSamplesStats) GetTotalQueryableSamples() int64

func (*PrometheusResponseSamplesStats) GetTotalQueryableSamplesPerStep 

func (m *PrometheusResponseSamplesStats) GetTotalQueryableSamplesPerStep() []*PrometheusResponseQueryableSamplesStatsPerStep

func (*PrometheusResponseSamplesStats) GoString 

func (this *PrometheusResponseSamplesStats) GoString() string

func (*PrometheusResponseSamplesStats) Marshal 

func (m *PrometheusResponseSamplesStats) Marshal() (dAtA []byte, err error)

func (*PrometheusResponseSamplesStats) MarshalTo 

func (m *PrometheusResponseSamplesStats) MarshalTo(dAtA []byte) (int, error)

func (*PrometheusResponseSamplesStats) MarshalToSizedBuffer 

func (m *PrometheusResponseSamplesStats) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*PrometheusResponseSamplesStats) ProtoMessage 

func (*PrometheusResponseSamplesStats) ProtoMessage()

func (*PrometheusResponseSamplesStats) Reset 

func (m *PrometheusResponseSamplesStats) Reset()

func (*PrometheusResponseSamplesStats) Size 

func (m *PrometheusResponseSamplesStats) Size() (n int)

func (*PrometheusResponseSamplesStats) String 

func (this *PrometheusResponseSamplesStats) String() string

func (*PrometheusResponseSamplesStats) Unmarshal 

func (m *PrometheusResponseSamplesStats) Unmarshal(dAtA []byte) error

func (*PrometheusResponseSamplesStats) XXX_DiscardUnknown 

func (m *PrometheusResponseSamplesStats) XXX_DiscardUnknown()

func (*PrometheusResponseSamplesStats) XXX_Marshal 

func (m *PrometheusResponseSamplesStats) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*PrometheusResponseSamplesStats) XXX_Merge 

func (m *PrometheusResponseSamplesStats) XXX_Merge(src proto.Message)

func (*PrometheusResponseSamplesStats) XXX_Size 

func (m *PrometheusResponseSamplesStats) XXX_Size() int

func (*PrometheusResponseSamplesStats) XXX_Unmarshal 

func (m *PrometheusResponseSamplesStats) XXX_Unmarshal(b []byte) error

type PrometheusResponseStats 

type PrometheusResponseStats struct {
	Samples *PrometheusResponseSamplesStats `protobuf:"bytes,1,opt,name=samples,proto3" json:"samples"`
}

func StatsMerge 

func StatsMerge(stats map[int64]*PrometheusResponseQueryableSamplesStatsPerStep) *PrometheusResponseStats

func (*PrometheusResponseStats) Descriptor 

func (*PrometheusResponseStats) Descriptor() ([]byte, []int)

func (*PrometheusResponseStats) Equal 

func (this *PrometheusResponseStats) Equal(that interface{}) bool

func (*PrometheusResponseStats) GetSamples 

func (m *PrometheusResponseStats) GetSamples() *PrometheusResponseSamplesStats

func (*PrometheusResponseStats) GoString 

func (this *PrometheusResponseStats) GoString() string

func (*PrometheusResponseStats) Marshal 

func (m *PrometheusResponseStats) Marshal() (dAtA []byte, err error)

func (*PrometheusResponseStats) MarshalTo 

func (m *PrometheusResponseStats) MarshalTo(dAtA []byte) (int, error)

func (*PrometheusResponseStats) MarshalToSizedBuffer 

func (m *PrometheusResponseStats) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*PrometheusResponseStats) ProtoMessage 

func (*PrometheusResponseStats) ProtoMessage()

func (*PrometheusResponseStats) Reset 

func (m *PrometheusResponseStats) Reset()

func (*PrometheusResponseStats) Size 

func (m *PrometheusResponseStats) Size() (n int)

func (*PrometheusResponseStats) String 

func (this *PrometheusResponseStats) String() string

func (*PrometheusResponseStats) Unmarshal 

func (m *PrometheusResponseStats) Unmarshal(dAtA []byte) error

func (*PrometheusResponseStats) XXX_DiscardUnknown 

func (m *PrometheusResponseStats) XXX_DiscardUnknown()

func (*PrometheusResponseStats) XXX_Marshal 

func (m *PrometheusResponseStats) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*PrometheusResponseStats) XXX_Merge 

func (m *PrometheusResponseStats) XXX_Merge(src proto.Message)

func (*PrometheusResponseStats) XXX_Size 

func (m *PrometheusResponseStats) XXX_Size() int

func (*PrometheusResponseStats) XXX_Unmarshal 

func (m *PrometheusResponseStats) XXX_Unmarshal(b []byte) error

type Request 

type Request interface {
	// GetStart returns the start timestamp of the request in milliseconds.
	GetStart() int64
	// GetEnd returns the end timestamp of the request in milliseconds.
	GetEnd() int64
	// GetStep returns the step of the request in milliseconds.
	GetStep() int64
	// GetQuery returns the query of the request.
	GetQuery() string
	// WithStartEnd clone the current request with different start and end timestamp.
	WithStartEnd(startTime int64, endTime int64) Request
	// WithQuery clone the current request with a different query.
	WithQuery(string) Request
	proto.Message
	// LogToSpan writes information about this request to an OpenTracing span
	LogToSpan(opentracing.Span)
	// GetStats returns the stats of the request.
	GetStats() string
	// WithStats clones the current `PrometheusRequest` with a new stats.
	WithStats(stats string) Request
}

Request represents a query range request that can be process by middlewares.

type RequestResponse 

type RequestResponse struct {
	Request  Request
	Response Response
}

RequestResponse contains a request response and the respective request that was used.

func DoRequests 

func DoRequests(ctx context.Context, downstream Handler, reqs []Request, limits Limits) ([]RequestResponse, error)

DoRequests executes a list of requests in parallel. The limits parameters is used to limit parallelism per single request.

type Response 

type Response interface {
	proto.Message
	// HTTPHeaders returns the HTTP headers in the response.
	HTTPHeaders() map[string][]string
}

Response represents a query range response.

type RoundTripFunc 

type RoundTripFunc func(*http.Request) (*http.Response, error)

RoundTripFunc is to http.RoundTripper what http.HandlerFunc is to http.Handler.

func (RoundTripFunc) RoundTrip 

func (f RoundTripFunc) RoundTrip(r *http.Request) (*http.Response, error)

RoundTrip implements http.RoundTripper.

type SampleHistogram added in v1.18.0 

type SampleHistogram struct {
	Count   float64            `protobuf:"fixed64,1,opt,name=count,proto3" json:"count,omitempty"`
	Sum     float64            `protobuf:"fixed64,2,opt,name=sum,proto3" json:"sum,omitempty"`
	Buckets []*HistogramBucket `protobuf:"bytes,3,rep,name=buckets,proto3" json:"buckets,omitempty"`
}

func (*SampleHistogram) Descriptor added in v1.18.0 

func (*SampleHistogram) Descriptor() ([]byte, []int)

func (*SampleHistogram) Equal added in v1.18.0 

func (this *SampleHistogram) Equal(that interface{}) bool

func (*SampleHistogram) GetBuckets added in v1.18.0 

func (m *SampleHistogram) GetBuckets() []*HistogramBucket

func (*SampleHistogram) GetCount added in v1.18.0 

func (m *SampleHistogram) GetCount() float64

func (*SampleHistogram) GetSum added in v1.18.0 

func (m *SampleHistogram) GetSum() float64

func (*SampleHistogram) GoString added in v1.18.0 

func (this *SampleHistogram) GoString() string

func (*SampleHistogram) Marshal added in v1.18.0 

func (m *SampleHistogram) Marshal() (dAtA []byte, err error)

func (*SampleHistogram) MarshalTo added in v1.18.0 

func (m *SampleHistogram) MarshalTo(dAtA []byte) (int, error)

func (*SampleHistogram) MarshalToSizedBuffer added in v1.18.0 

func (m *SampleHistogram) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*SampleHistogram) ProtoMessage added in v1.18.0 

func (*SampleHistogram) ProtoMessage()

func (*SampleHistogram) Reset added in v1.18.0 

func (m *SampleHistogram) Reset()

func (*SampleHistogram) Size added in v1.18.0 

func (m *SampleHistogram) Size() (n int)

func (*SampleHistogram) String added in v1.18.0 

func (this *SampleHistogram) String() string

func (*SampleHistogram) Unmarshal added in v1.18.0 

func (m *SampleHistogram) Unmarshal(dAtA []byte) error

func (*SampleHistogram) XXX_DiscardUnknown added in v1.18.0 

func (m *SampleHistogram) XXX_DiscardUnknown()

func (*SampleHistogram) XXX_Marshal added in v1.18.0 

func (m *SampleHistogram) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*SampleHistogram) XXX_Merge added in v1.18.0 

func (m *SampleHistogram) XXX_Merge(src proto.Message)

func (*SampleHistogram) XXX_Size added in v1.18.0 

func (m *SampleHistogram) XXX_Size() int

func (*SampleHistogram) XXX_Unmarshal added in v1.18.0 

func (m *SampleHistogram) XXX_Unmarshal(b []byte) error

type SampleHistogramPair added in v1.18.0 

type SampleHistogramPair struct {
	TimestampMs int64           `protobuf:"varint,1,opt,name=timestamp_ms,json=timestampMs,proto3" json:"timestamp_ms,omitempty"`
	Histogram   SampleHistogram `protobuf:"bytes,2,opt,name=histogram,proto3" json:"histogram"`
}

func (*SampleHistogramPair) Descriptor added in v1.18.0 

func (*SampleHistogramPair) Descriptor() ([]byte, []int)

func (*SampleHistogramPair) Equal added in v1.18.0 

func (this *SampleHistogramPair) Equal(that interface{}) bool

func (*SampleHistogramPair) GetHistogram added in v1.18.0 

func (m *SampleHistogramPair) GetHistogram() SampleHistogram

func (*SampleHistogramPair) GetTimestampMs added in v1.18.0 

func (m *SampleHistogramPair) GetTimestampMs() int64

func (*SampleHistogramPair) GoString added in v1.18.0 

func (this *SampleHistogramPair) GoString() string

func (*SampleHistogramPair) Marshal added in v1.18.0 

func (m *SampleHistogramPair) Marshal() (dAtA []byte, err error)

func (*SampleHistogramPair) MarshalTo added in v1.18.0 

func (m *SampleHistogramPair) MarshalTo(dAtA []byte) (int, error)

func (*SampleHistogramPair) MarshalToSizedBuffer added in v1.18.0 

func (m *SampleHistogramPair) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*SampleHistogramPair) ProtoMessage added in v1.18.0 

func (*SampleHistogramPair) ProtoMessage()

func (*SampleHistogramPair) Reset added in v1.18.0 

func (m *SampleHistogramPair) Reset()

func (*SampleHistogramPair) Size added in v1.18.0 

func (m *SampleHistogramPair) Size() (n int)

func (*SampleHistogramPair) String added in v1.18.0 

func (this *SampleHistogramPair) String() string

func (*SampleHistogramPair) Unmarshal added in v1.18.0 

func (m *SampleHistogramPair) Unmarshal(dAtA []byte) error

func (*SampleHistogramPair) XXX_DiscardUnknown added in v1.18.0 

func (m *SampleHistogramPair) XXX_DiscardUnknown()

func (*SampleHistogramPair) XXX_Marshal added in v1.18.0 

func (m *SampleHistogramPair) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*SampleHistogramPair) XXX_Merge added in v1.18.0 

func (m *SampleHistogramPair) XXX_Merge(src proto.Message)

func (*SampleHistogramPair) XXX_Size added in v1.18.0 

func (m *SampleHistogramPair) XXX_Size() int

func (*SampleHistogramPair) XXX_Unmarshal added in v1.18.0 

func (m *SampleHistogramPair) XXX_Unmarshal(b []byte) error

type SampleStream 

type SampleStream struct {
	Labels     []github_com_cortexproject_cortex_pkg_cortexpb.LabelAdapter `protobuf:"bytes,1,rep,name=labels,proto3,customtype=github.com/cortexproject/cortex/pkg/cortexpb.LabelAdapter" json:"metric"`
	Samples    []cortexpb.Sample                                           `protobuf:"bytes,2,rep,name=samples,proto3" json:"values"`
	Histograms []SampleHistogramPair                                       `protobuf:"bytes,3,rep,name=histograms,proto3" json:"histograms"`
}

func (*SampleStream) Descriptor 

func (*SampleStream) Descriptor() ([]byte, []int)

func (*SampleStream) Equal 

func (this *SampleStream) Equal(that interface{}) bool

func (*SampleStream) GetHistograms added in v1.18.0 

func (m *SampleStream) GetHistograms() []SampleHistogramPair

func (*SampleStream) GetSamples 

func (m *SampleStream) GetSamples() []cortexpb.Sample

func (*SampleStream) GoString 

func (this *SampleStream) GoString() string

func (*SampleStream) Marshal 

func (m *SampleStream) Marshal() (dAtA []byte, err error)

func (*SampleStream) MarshalTo 

func (m *SampleStream) MarshalTo(dAtA []byte) (int, error)

func (*SampleStream) MarshalToSizedBuffer 

func (m *SampleStream) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*SampleStream) ProtoMessage 

func (*SampleStream) ProtoMessage()

func (*SampleStream) Reset 

func (m *SampleStream) Reset()

func (*SampleStream) Size 

func (m *SampleStream) Size() (n int)

func (*SampleStream) String 

func (this *SampleStream) String() string

func (*SampleStream) Unmarshal 

func (m *SampleStream) Unmarshal(dAtA []byte) error

func (*SampleStream) XXX_DiscardUnknown 

func (m *SampleStream) XXX_DiscardUnknown()

func (*SampleStream) XXX_Marshal 

func (m *SampleStream) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*SampleStream) XXX_Merge 

func (m *SampleStream) XXX_Merge(src proto.Message)

func (*SampleStream) XXX_Size 

func (m *SampleStream) XXX_Size() int

func (*SampleStream) XXX_Unmarshal 

func (m *SampleStream) XXX_Unmarshal(b []byte) error

type Tripperware 

type Tripperware func(http.RoundTripper) http.RoundTripper

Tripperware is a signature for all http client-side middleware.

func NewQueryTripperware 

func NewQueryTripperware(
	log log.Logger,
	registerer prometheus.Registerer,
	forwardHeaders []string,
	queryRangeMiddleware []Middleware,
	instantRangeMiddleware []Middleware,
	queryRangeCodec Codec,
	instantQueryCodec Codec,
	limits Limits,
	queryAnalyzer querysharding.Analyzer,
	defaultSubQueryInterval time.Duration,
	maxSubQuerySteps int64,
	lookbackDelta time.Duration,
) Tripperware

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