store

package
v0.32.0-rc.0 Latest Latest
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 Go to latest Published: Aug 16, 2023 License: Apache-2.0 Imports: 83 Imported by: 18

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Index

Constants

View Source 
const (
	// MaxSamplesPerChunk is approximately the max number of samples that we may have in any given chunk. This is needed
	// for precalculating the number of samples that we may have to retrieve and decode for any given query
	// without downloading them. Please take a look at https://github.com/prometheus/tsdb/pull/397 to know
	// where this number comes from. Long story short: TSDB is made in such a way, and it is made in such a way
	// because you barely get any improvements in compression when the number of samples is beyond this.
	// Take a look at Figure 6 in this whitepaper http://www.vldb.org/pvldb/vol8/p1816-teller.pdf.
	MaxSamplesPerChunk = 120
	// EstimatedMaxChunkSize is average max of chunk size. This can be exceeded though in very rare (valid) cases.
	EstimatedMaxChunkSize  = 16000
	EstimatedMaxSeriesSize = 64 * 1024

	// CompatibilityTypeLabelName is an artificial label that Store Gateway can optionally advertise. This is required for compatibility
	// with pre v0.8.0 Querier. Previous Queriers was strict about duplicated external labels of all StoreAPIs that had any labels.
	// Now with newer Store Gateway advertising all the external labels it has access to, there was simple case where
	// Querier was blocking Store Gateway as duplicate with sidecar.
	//
	// Newer Queriers are not strict, no duplicated external labels check is there anymore.
	// Additionally newer Queriers removes/ignore this exact labels from UI and querying.
	//
	// This label name is intentionally against Prometheus label style.
	// TODO(bwplotka): Remove it at some point.
	CompatibilityTypeLabelName = "@thanos_compatibility_store_type"

	// DefaultPostingOffsetInMemorySampling represents default value for --store.index-header-posting-offsets-in-mem-sampling.
	// 32 value is chosen as it's a good balance for common setups. Sampling that is not too large (too many CPU cycles) and
	// not too small (too much memory).
	DefaultPostingOffsetInMemorySampling = 32

	PartitionerMaxGapSize = 512 * 1024

	// SeriesBatchSize is the default batch size when fetching series from object storage.
	SeriesBatchSize = 10000
)
View Source 
const RemoteReadFrameLimit = 1048576
View Source 
const StoreMatcherKey = ctxKey(0)

StoreMatcherKey is the context key for the store's allow list.

View Source 
const UninitializedTSDBTime = math.MaxInt64

UninitializedTSDBTime is the TSDB start time of an uninitialized TSDB instance.

Variables

View Source 
var ErrorNoStoresMatched = errors.New("No StoreAPIs matched for this query")

ErrorNoStoresMatched is returned if the query does not match any data. This can happen with Query servers trees and external labels.

Functions

func ExpandPostingsWithContext added in v0.32.0 

func ExpandPostingsWithContext(ctx context.Context, p index.Postings) (res []storage.SeriesRef, err error)

ExpandPostingsWithContext returns the postings expanded as a slice and considers context.

func NewDedupResponseHeap added in v0.29.0 

func NewDedupResponseHeap(h *ProxyResponseHeap) *dedupResponseHeap

NewDedupResponseHeap returns a wrapper around ProxyResponseHeap that merged duplicated series messages into one. It also deduplicates identical chunks identified by the same checksum from each series message.

func NewDefaultChunkBytesPool added in v0.19.0 

func NewDefaultChunkBytesPool(maxChunkPoolBytes uint64) (pool.Bytes, error)

NewDefaultChunkBytesPool returns a chunk bytes pool with default settings.

func NewInstrumentedStoreServer added in v0.31.0 

func NewInstrumentedStoreServer(reg prometheus.Registerer, store storepb.StoreServer) storepb.StoreServer

NewInstrumentedStoreServer creates a new instrumentedStoreServer.

func NewLimitedStoreServer added in v0.31.0 

func NewLimitedStoreServer(store storepb.StoreServer, reg prometheus.Registerer, selectLimits SeriesSelectLimits) storepb.StoreServer

NewLimitedStoreServer creates a new limitedStoreServer.

func NewNoCopyScanner added in v0.13.0 

func NewNoCopyScanner(b []byte, splitFunc bufio.SplitFunc) *noCopyScanner

NewNoCopyScanner returns bufio.Scanner-like scanner that is meant to be used on already allocated byte slice (or mmapped) one. Returned tokens are shared.

func NewRecoverableStoreServer added in v0.31.0 

func NewRecoverableStoreServer(logger log.Logger, storeServer storepb.StoreServer) *recoverableStoreServer

func NewSeriesStatsAggregator added in v0.29.0 

func NewSeriesStatsAggregator(
	reg prometheus.Registerer,
	durationQuantiles []float64,
	sampleQuantiles []float64,
	seriesQuantiles []float64,
) *seriesStatsAggregator

NewSeriesStatsAggregator is a constructor for seriesStatsAggregator.

func NewSeriesStatsAggregatorFactory added in v0.32.0 

func NewSeriesStatsAggregatorFactory(
	reg prometheus.Registerer,
	durationQuantiles []float64,
	sampleQuantiles []float64,
	seriesQuantiles []float64,
) *seriesStatsAggregatorFactory

func RegisterStoreServer added in v0.16.0 

func RegisterStoreServer(storeSrv storepb.StoreServer, logger log.Logger) func(*grpc.Server)

func RegisterWritableStoreServer added in v0.16.0 

func RegisterWritableStoreServer(storeSrv storepb.WriteableStoreServer) func(*grpc.Server)

func ScanGRPCCurlProtoStreamMessages added in v0.13.0 

func ScanGRPCCurlProtoStreamMessages(data []byte, atEOF bool) (advance int, token []byte, err error)

ScanGRPCCurlProtoStreamMessages allows to tokenize each streamed gRPC message from grpcurl tool.

Types

type BlockEstimator added in v0.32.0 

type BlockEstimator func(meta metadata.Meta) uint64

type BucketStore 

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

BucketStore implements the store API backed by a bucket. It loads all index files to local disk.

NOTE: Bucket store reencodes postings using diff+varint+snappy when storing to cache. This makes them smaller, but takes extra CPU and memory. When used with in-memory cache, memory usage should decrease overall, thanks to postings being smaller.

func NewBucketStore 

func NewBucketStore(
	bkt objstore.InstrumentedBucketReader,
	fetcher block.MetadataFetcher,
	dir string,
	chunksLimiterFactory ChunksLimiterFactory,
	seriesLimiterFactory SeriesLimiterFactory,
	bytesLimiterFactory BytesLimiterFactory,
	partitioner Partitioner,
	blockSyncConcurrency int,
	enableCompatibilityLabel bool,
	postingOffsetsInMemSampling int,
	enableSeriesResponseHints bool,
	lazyIndexReaderEnabled bool,
	lazyIndexReaderIdleTimeout time.Duration,
	options ...BucketStoreOption,
) (*BucketStore, error)

NewBucketStore creates a new bucket backed store that implements the store API against an object store bucket. It is optimized to work against high latency backends.

func (*BucketStore) Close 

func (s *BucketStore) Close() (err error)

Close the store.

func (*BucketStore) Info 

func (s *BucketStore) Info(context.Context, *storepb.InfoRequest) (*storepb.InfoResponse, error)

Info implements the storepb.StoreServer interface.

func (*BucketStore) InitialSync 

func (s *BucketStore) InitialSync(ctx context.Context) error

InitialSync perform blocking sync with extra step at the end to delete locally saved blocks that are no longer present in the bucket. The mismatch of these can only happen between restarts, so we can do that only once per startup.

func (*BucketStore) LabelNames 

func (s *BucketStore) LabelNames(ctx context.Context, req *storepb.LabelNamesRequest) (*storepb.LabelNamesResponse, error)

LabelNames implements the storepb.StoreServer interface.

func (*BucketStore) LabelNamesSet added in v0.32.0 

func (b *BucketStore) LabelNamesSet() stringset.Set

func (*BucketStore) LabelSet added in v0.24.0 

func (s *BucketStore) LabelSet() []labelpb.ZLabelSet

func (*BucketStore) LabelValues 

func (s *BucketStore) LabelValues(ctx context.Context, req *storepb.LabelValuesRequest) (*storepb.LabelValuesResponse, error)

LabelValues implements the storepb.StoreServer interface.

func (*BucketStore) Series 

func (s *BucketStore) Series(req *storepb.SeriesRequest, seriesSrv storepb.Store_SeriesServer) (err error)

Series implements the storepb.StoreServer interface.

func (*BucketStore) SyncBlocks 

func (s *BucketStore) SyncBlocks(ctx context.Context) error

SyncBlocks synchronizes the stores state with the Bucket bucket. It will reuse disk space as persistent cache based on s.dir param.

func (*BucketStore) TSDBInfos added in v0.32.0 

func (s *BucketStore) TSDBInfos() []infopb.TSDBInfo

TSDBInfos returns a list of infopb.TSDBInfos for blocks in the bucket store.

func (*BucketStore) TimeRange 

func (s *BucketStore) TimeRange() (mint, maxt int64)

TimeRange returns the minimum and maximum timestamp of data available in the store.

func (*BucketStore) UpdateLabelNames added in v0.32.0 

func (s *BucketStore) UpdateLabelNames()

type BucketStoreOption added in v0.20.0 

type BucketStoreOption func(s *BucketStore)

BucketStoreOption are functions that configure BucketStore.

func WithBlockEstimatedMaxChunkFunc added in v0.32.0 

func WithBlockEstimatedMaxChunkFunc(f BlockEstimator) BucketStoreOption

func WithBlockEstimatedMaxSeriesFunc added in v0.32.0 

func WithBlockEstimatedMaxSeriesFunc(f BlockEstimator) BucketStoreOption

func WithChunkHashCalculation added in v0.30.0 

func WithChunkHashCalculation(enableChunkHashCalculation bool) BucketStoreOption

func WithChunkPool added in v0.20.0 

func WithChunkPool(chunkPool pool.Bytes) BucketStoreOption

WithChunkPool sets a pool.Bytes to use for chunks.

func WithDebugLogging added in v0.20.0 

func WithDebugLogging() BucketStoreOption

WithDebugLogging enables debug logging.

func WithFilterConfig added in v0.20.0 

func WithFilterConfig(filter *FilterConfig) BucketStoreOption

WithFilterConfig sets a filter which Store uses for filtering metrics based on time.

func WithIndexCache added in v0.20.0 

func WithIndexCache(cache storecache.IndexCache) BucketStoreOption

WithIndexCache sets a indexCache to use instead of a noopCache.

func WithLogger added in v0.20.0 

func WithLogger(logger log.Logger) BucketStoreOption

WithLogger sets the BucketStore logger to the one you pass.

func WithQueryGate added in v0.20.0 

func WithQueryGate(queryGate gate.Gate) BucketStoreOption

WithQueryGate sets a queryGate to use instead of a noopGate.

func WithRegistry added in v0.20.0 

func WithRegistry(reg prometheus.Registerer) BucketStoreOption

WithRegistry sets a registry that BucketStore uses to register metrics with.

func WithSeriesBatchSize added in v0.30.0 

func WithSeriesBatchSize(seriesBatchSize int) BucketStoreOption

type BytesCounter added in v0.23.0 

type BytesCounter struct {
	io.ReadCloser
	// contains filtered or unexported fields
}

func NewBytesRead added in v0.23.0 

func NewBytesRead(rc io.ReadCloser) *BytesCounter

func (*BytesCounter) BytesCount added in v0.23.0 

func (s *BytesCounter) BytesCount() int

func (*BytesCounter) Read added in v0.23.0 

func (s *BytesCounter) Read(p []byte) (n int, err error)

type BytesLimiter added in v0.30.0 

type BytesLimiter interface {
	// Reserve bytes out of the total amount of bytes enforced by the limiter.
	// Returns an error if the limit has been exceeded. This function must be
	// goroutine safe.
	Reserve(num uint64) error
}

type BytesLimiterFactory added in v0.30.0 

type BytesLimiterFactory func(failedCounter prometheus.Counter) BytesLimiter

BytesLimiterFactory is used to create a new BytesLimiter.

func NewBytesLimiterFactory added in v0.30.0 

func NewBytesLimiterFactory(limit units.Base2Bytes) BytesLimiterFactory

NewBytesLimiterFactory makes a new BytesLimiterFactory with a static limit.

type ChunksLimiter added in v0.15.0 

type ChunksLimiter interface {
	// Reserve num chunks out of the total number of chunks enforced by the limiter.
	// Returns an error if the limit has been exceeded. This function must be
	// goroutine safe.
	Reserve(num uint64) error
}

type ChunksLimiterFactory added in v0.15.0 

type ChunksLimiterFactory func(failedCounter prometheus.Counter) ChunksLimiter

ChunksLimiterFactory is used to create a new ChunksLimiter. The factory is useful for projects depending on Thanos (eg. Cortex) which have dynamic limits.

func NewChunksLimiterFactory added in v0.15.0 

func NewChunksLimiterFactory(limit uint64) ChunksLimiterFactory

NewChunksLimiterFactory makes a new ChunksLimiterFactory with a static limit.

type Client 

type Client interface {
	// StoreClient to access the store.
	storepb.StoreClient

	// LabelSets that each apply to some data exposed by the backing store.
	LabelSets() []labels.Labels

	// TimeRange returns minimum and maximum time range of data in the store.
	TimeRange() (mint int64, maxt int64)

	// TSDBInfos returns metadata about each TSDB backed by the client.
	TSDBInfos() []infopb.TSDBInfo

	// SupportsSharding returns true if sharding is supported by the underlying store.
	SupportsSharding() bool

	// SupportsWithoutReplicaLabels returns true if trimming replica labels
	// and sorted response is supported by the underlying store.
	SupportsWithoutReplicaLabels() bool

	// String returns the string representation of the store client.
	String() string

	// Addr returns address of the store client. If second parameter is true, the client
	// represents a local client (server-as-client) and has no remote address.
	Addr() (addr string, isLocalClient bool)
}

Client holds meta information about a store.

type CloseDelegator added in v0.15.0 

type CloseDelegator interface {
	Delegate(io.Closer)
}

CloseDelegator allows to delegate close (releasing resources used by request to the server). This is useful when we invoke StoreAPI within another StoreAPI and results are ephemeral until copied.

type FilterConfig added in v0.7.0 

type FilterConfig struct {
	MinTime, MaxTime model.TimeOrDurationValue
}

FilterConfig is a configuration, which Store uses for filtering metrics based on time.

type Limiter added in v0.7.0 

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

Limiter is a simple mechanism for checking if something has passed a certain threshold.

func NewLimiter added in v0.7.0 

func NewLimiter(limit uint64, ctr prometheus.Counter) *Limiter

NewLimiter returns a new limiter with a specified limit. 0 disables the limit.

func (*Limiter) Reserve added in v0.15.0 

func (l *Limiter) Reserve(num uint64) error

Reserve implements ChunksLimiter.

type LocalStore added in v0.13.0 

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

LocalStore implements the store API against single file with stream of proto-based SeriesResponses in JSON format. Inefficient implementation for quick StoreAPI view. Chunk order is exactly the same as in a given file.

func NewLocalStoreFromJSONMmappableFile added in v0.13.0 

func NewLocalStoreFromJSONMmappableFile(
	logger log.Logger,
	component component.StoreAPI,
	extLabels labels.Labels,
	path string,
	split bufio.SplitFunc,
) (*LocalStore, error)

TODO(bwplotka): Add remote read so Prometheus users can use this. Potentially after streaming will be added https://github.com/prometheus/prometheus/issues/5926. TODO(bwplotka): Consider non mmaped version of this, as well different versions.

func (*LocalStore) Close added in v0.13.0 

func (s *LocalStore) Close() (err error)

func (*LocalStore) Info added in v0.13.0 

func (s *LocalStore) Info(_ context.Context, _ *storepb.InfoRequest) (*storepb.InfoResponse, error)

Info returns store information about the Prometheus instance.

func (*LocalStore) LabelNames added in v0.13.0 

func (s *LocalStore) LabelNames(_ context.Context, _ *storepb.LabelNamesRequest) (
	*storepb.LabelNamesResponse, error,
)

LabelNames returns all known label names.

func (*LocalStore) LabelValues added in v0.13.0 

func (s *LocalStore) LabelValues(_ context.Context, r *storepb.LabelValuesRequest) (
	*storepb.LabelValuesResponse, error,
)

LabelValues returns all known label values for a given label name.

func (*LocalStore) Series added in v0.13.0 

func (s *LocalStore) Series(r *storepb.SeriesRequest, srv storepb.Store_SeriesServer) error

Series returns all series for a requested time range and label matcher. The returned data may exceed the requested time bounds.

type NoopSeriesStatsAggregator added in v0.29.0 

type NoopSeriesStatsAggregator struct{}

NoopSeriesStatsAggregator is a query performance series aggregator that does nothing.

func (*NoopSeriesStatsAggregator) Aggregate added in v0.29.0 

func (s *NoopSeriesStatsAggregator) Aggregate(_ storepb.SeriesStatsCounter)

func (*NoopSeriesStatsAggregator) Observe added in v0.29.0 

func (s *NoopSeriesStatsAggregator) Observe(_ float64)

type NoopSeriesStatsAggregatorFactory added in v0.32.0 

type NoopSeriesStatsAggregatorFactory struct{}

NoopSeriesStatsAggregatorFactory is a query performance series aggregator factory that does nothing.

func (*NoopSeriesStatsAggregatorFactory) NewAggregator added in v0.32.0 

func (s *NoopSeriesStatsAggregatorFactory) NewAggregator() SeriesQueryPerformanceMetricsAggregator

type Part added in v0.19.0 

type Part struct {
	Start uint64
	End   uint64

	ElemRng [2]int
}

type Partitioner added in v0.19.0 

type Partitioner interface {
	// Partition partitions length entries into n <= length ranges that cover all
	// input ranges
	// It supports overlapping ranges.
	// NOTE: It expects range to be sorted by start time.
	Partition(length int, rng func(int) (uint64, uint64)) []Part
}

func NewGapBasedPartitioner added in v0.19.0 

func NewGapBasedPartitioner(maxGapSize uint64) Partitioner

type PrometheusStore 

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

PrometheusStore implements the store node API on top of the Prometheus remote read API.

func NewPrometheusStore 

func NewPrometheusStore(
	logger log.Logger,
	reg prometheus.Registerer,
	client *promclient.Client,
	baseURL *url.URL,
	component component.StoreAPI,
	externalLabelsFn func() labels.Labels,
	timestamps func() (mint int64, maxt int64),
	labelNamesSet func() stringset.Set,
	promVersion func() string,
) (*PrometheusStore, error)

NewPrometheusStore returns a new PrometheusStore that uses the given HTTP client to talk to Prometheus. It attaches the provided external labels to all results. Provided external labels has to be sorted.

func (*PrometheusStore) Info 

func (p *PrometheusStore) Info(_ context.Context, _ *storepb.InfoRequest) (*storepb.InfoResponse, error)

Info returns store information about the Prometheus instance. NOTE(bwplotka): MaxTime & MinTime are not accurate nor adjusted dynamically. This is fine for now, but might be needed in future.

func (*PrometheusStore) LabelNames 

func (p *PrometheusStore) LabelNames(ctx context.Context, r *storepb.LabelNamesRequest) (*storepb.LabelNamesResponse, error)

LabelNames returns all known label names of series that match the given matchers.

func (*PrometheusStore) LabelSet added in v0.24.0 

func (p *PrometheusStore) LabelSet() []labelpb.ZLabelSet

func (*PrometheusStore) LabelValues 

func (p *PrometheusStore) LabelValues(ctx context.Context, r *storepb.LabelValuesRequest) (*storepb.LabelValuesResponse, error)

LabelValues returns all known label values for a given label name.

func (*PrometheusStore) Series 

func (p *PrometheusStore) Series(r *storepb.SeriesRequest, seriesSrv storepb.Store_SeriesServer) error

Series returns all series for a requested time range and label matcher.

func (*PrometheusStore) TSDBInfos added in v0.32.0 

func (p *PrometheusStore) TSDBInfos() []infopb.TSDBInfo

func (*PrometheusStore) Timestamps added in v0.24.0 

func (p *PrometheusStore) Timestamps() (mint int64, maxt int64)

type ProxyResponseHeap added in v0.29.0 

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

ProxyResponseHeap is a heap for storepb.SeriesSets. It performs k-way merge between all of those sets. TODO(GiedriusS): can be improved with a tournament tree. This is O(n*logk) but can be Theta(n*logk). However, tournament trees need n-1 auxiliary nodes so there might not be much of a difference.

func NewProxyResponseHeap added in v0.29.0 

func NewProxyResponseHeap(seriesSets ...respSet) *ProxyResponseHeap

NewProxyResponseHeap returns heap that k-way merge series together. It's agnostic to duplicates and overlaps, it forwards all duplicated series in random order.

func (*ProxyResponseHeap) At added in v0.29.0 

func (h *ProxyResponseHeap) At() *storepb.SeriesResponse

func (*ProxyResponseHeap) Empty added in v0.29.0 

func (h *ProxyResponseHeap) Empty() bool

func (*ProxyResponseHeap) Len added in v0.29.0 

func (h *ProxyResponseHeap) Len() int

func (*ProxyResponseHeap) Less added in v0.29.0 

func (h *ProxyResponseHeap) Less(i, j int) bool

func (*ProxyResponseHeap) Min added in v0.29.0 

func (h *ProxyResponseHeap) Min() *ProxyResponseHeapNode

func (*ProxyResponseHeap) Next added in v0.29.0 

func (h *ProxyResponseHeap) Next() bool

func (*ProxyResponseHeap) Pop added in v0.29.0 

func (h *ProxyResponseHeap) Pop() (v interface{})

func (*ProxyResponseHeap) Push added in v0.29.0 

func (h *ProxyResponseHeap) Push(x interface{})

func (*ProxyResponseHeap) Swap added in v0.29.0 

func (h *ProxyResponseHeap) Swap(i, j int)

type ProxyResponseHeapNode added in v0.29.0 

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

type ProxyStore 

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

ProxyStore implements the store API that proxies request to all given underlying stores.

func NewProxyStore 

func NewProxyStore(
	logger log.Logger,
	reg prometheus.Registerer,
	stores func() []Client,
	component component.StoreAPI,
	selectorLabels labels.Labels,
	responseTimeout time.Duration,
	retrievalStrategy RetrievalStrategy,
	options ...ProxyStoreOption,
) *ProxyStore

NewProxyStore returns a new ProxyStore that uses the given clients that implements storeAPI to fan-in all series to the client. Note that there is no deduplication support. Deduplication should be done on the highest level (just before PromQL).

func (*ProxyStore) Info 

func (s *ProxyStore) Info(_ context.Context, _ *storepb.InfoRequest) (*storepb.InfoResponse, error)

Info returns store information about the external labels this store have.

func (*ProxyStore) LabelNames 

func (s *ProxyStore) LabelNames(ctx context.Context, r *storepb.LabelNamesRequest) (
	*storepb.LabelNamesResponse, error,
)

LabelNames returns all known label names.

func (*ProxyStore) LabelSet added in v0.24.0 

func (s *ProxyStore) LabelSet() []labelpb.ZLabelSet

func (*ProxyStore) LabelValues 

func (s *ProxyStore) LabelValues(ctx context.Context, r *storepb.LabelValuesRequest) (
	*storepb.LabelValuesResponse, error,
)

LabelValues returns all known label values for a given label name.

func (*ProxyStore) Series 

func (s *ProxyStore) Series(originalRequest *storepb.SeriesRequest, srv storepb.Store_SeriesServer) error

func (*ProxyStore) TSDBInfos added in v0.32.0 

func (s *ProxyStore) TSDBInfos() []infopb.TSDBInfo

func (*ProxyStore) TimeRange added in v0.24.0 

func (s *ProxyStore) TimeRange() (int64, int64)

type ProxyStoreOption added in v0.32.0 

type ProxyStoreOption func(s *ProxyStore)

BucketStoreOption are functions that configure BucketStore.

func WithProxyStoreDebugLogging added in v0.32.0 

func WithProxyStoreDebugLogging() ProxyStoreOption

WithProxyStoreDebugLogging enables debug logging.

type ReadWriteTSDBStore added in v0.11.0 

type ReadWriteTSDBStore struct {
	storepb.StoreServer
	storepb.WriteableStoreServer
}

ReadWriteTSDBStore is a TSDBStore that can also be written to.

type RetrievalStrategy added in v0.29.0 

type RetrievalStrategy string

RetrievalStrategy stores what kind of retrieval strategy shall be used for the async response set. 

const (
	// LazyRetrieval allows readers (e.g. PromQL engine) to use (stream) data as soon as possible.
	LazyRetrieval RetrievalStrategy = "lazy"
	// EagerRetrieval is optimized to read all into internal buffer before returning to readers (e.g. PromQL engine).
	// This currently preferred because:
	// * Both PromQL engines (old and new) want all series ASAP to make decisions.
	// * Querier buffers all responses when using StoreAPI internally.
	EagerRetrieval RetrievalStrategy = "eager"
)

type SeriesLimiter added in v0.18.0 

type SeriesLimiter interface {
	// Reserve num series out of the total number of series enforced by the limiter.
	// Returns an error if the limit has been exceeded. This function must be
	// goroutine safe.
	Reserve(num uint64) error
}

type SeriesLimiterFactory added in v0.18.0 

type SeriesLimiterFactory func(failedCounter prometheus.Counter) SeriesLimiter

SeriesLimiterFactory is used to create a new SeriesLimiter.

func NewSeriesLimiterFactory added in v0.18.0 

func NewSeriesLimiterFactory(limit uint64) SeriesLimiterFactory

NewSeriesLimiterFactory makes a new SeriesLimiterFactory with a static limit.

type SeriesQueryPerformanceMetricsAggregator added in v0.32.0 

type SeriesQueryPerformanceMetricsAggregator interface {
	Aggregate(seriesStats storepb.SeriesStatsCounter)
	Observe(duration float64)
}

type SeriesQueryPerformanceMetricsAggregatorFactory added in v0.32.0 

type SeriesQueryPerformanceMetricsAggregatorFactory interface {
	NewAggregator() SeriesQueryPerformanceMetricsAggregator
}

type SeriesSelectLimits added in v0.31.0 

type SeriesSelectLimits struct {
	SeriesPerRequest  uint64
	SamplesPerRequest uint64
}

SeriesSelectLimits are limits applied against individual Series calls.

func (*SeriesSelectLimits) RegisterFlags added in v0.31.0 

func (l *SeriesSelectLimits) RegisterFlags(cmd extkingpin.FlagClause)

type TSDBReader added in v0.15.0 

type TSDBReader interface {
	storage.ChunkQueryable
	StartTime() (int64, error)
}

type TSDBStore 

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

TSDBStore implements the store API against a local TSDB instance. It attaches the provided external labels to all results. It only responds with raw data and does not support downsampling.

func NewTSDBStore 

func NewTSDBStore(logger log.Logger, db TSDBReader, component component.StoreAPI, extLset labels.Labels) *TSDBStore

NewTSDBStore creates a new TSDBStore. NOTE: Given lset has to be sorted.

func (*TSDBStore) Info 

func (s *TSDBStore) Info(_ context.Context, _ *storepb.InfoRequest) (*storepb.InfoResponse, error)

Info returns store information about the Prometheus instance.

func (*TSDBStore) LabelNames 

func (s *TSDBStore) LabelNames(ctx context.Context, r *storepb.LabelNamesRequest) (
	*storepb.LabelNamesResponse, error,
)

LabelNames returns all known label names constrained with the given matchers.

func (*TSDBStore) LabelNamesSet added in v0.32.0 

func (b *TSDBStore) LabelNamesSet() stringset.Set

func (*TSDBStore) LabelSet added in v0.24.0 

func (s *TSDBStore) LabelSet() []labelpb.ZLabelSet

func (*TSDBStore) LabelValues 

func (s *TSDBStore) LabelValues(ctx context.Context, r *storepb.LabelValuesRequest) (
	*storepb.LabelValuesResponse, error,
)

LabelValues returns all known label values for a given label name.

func (*TSDBStore) Series 

func (s *TSDBStore) Series(r *storepb.SeriesRequest, seriesSrv storepb.Store_SeriesServer) error

Series returns all series for a requested time range and label matcher. The returned data may exceed the requested time bounds.

func (*TSDBStore) SetExtLset added in v0.32.0 

func (s *TSDBStore) SetExtLset(extLset labels.Labels)

func (*TSDBStore) TSDBInfos added in v0.32.0 

func (p *TSDBStore) TSDBInfos() []infopb.TSDBInfo

func (*TSDBStore) TimeRange added in v0.24.0 

func (s *TSDBStore) TimeRange() (int64, int64)

func (*TSDBStore) UpdateLabelNames added in v0.32.0 

func (s *TSDBStore) UpdateLabelNames(ctx context.Context)

Source Files

View all Source files

Directories

Path Synopsis
cachekey
prompb
testutil

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