storage

Documentation

Index

• func ActivePeriodConfig(configs []chunk.PeriodConfig) int
• func IsBlockOverlapping(b chunkenc.Block, with *LazyChunk, direction logproto.Direction) bool
• func NewTableClient(name string, cfg Config) (chunk.TableClient, error)
• func RegisterCustomIndexClients(cfg *Config, registerer prometheus.Registerer)
• func UsingBoltdbShipper(configs []chunk.PeriodConfig) bool
• type AsyncStore
  • func NewAsyncStore(store chunk.Store, querier IngesterQuerier, queryIngestersWithin time.Duration) *AsyncStore
  • func (a *AsyncStore) GetChunkRefs(ctx context.Context, userID string, from, through model.Time, ...) ([][]chunk.Chunk, []*chunk.Fetcher, error)
• type ChunkFilterer
• type ChunkMetrics
  • func NewChunkMetrics(r prometheus.Registerer, maxBatchSize int) *ChunkMetrics
• type ChunkStoreConfig
  • func (cfg *ChunkStoreConfig) RegisterFlags(f *flag.FlagSet)
  • func (cfg *ChunkStoreConfig) Validate(logger log.Logger) error
• type Config
  • func (cfg *Config) RegisterFlags(f *flag.FlagSet)
• type IngesterQuerier
• type LazyChunk
  • func (c *LazyChunk) IsOverlapping(with *LazyChunk, direction logproto.Direction) bool
  • func (c *LazyChunk) Iterator(ctx context.Context, from, through time.Time, direction logproto.Direction, ...) (iter.EntryIterator, error)
  • func (c *LazyChunk) SampleIterator(ctx context.Context, from, through time.Time, ...) (iter.SampleIterator, error)
• type RequestChunkFilterer
• type SchemaConfig
  • func (cfg *SchemaConfig) Validate() error
• type Store
  • func NewStore(cfg Config, schemaCfg SchemaConfig, chunkStore chunk.Store, ...) (Store, error)

Functions

func ActivePeriodConfig

func ActivePeriodConfig(configs []chunk.PeriodConfig) int

ActivePeriodConfig returns index of active PeriodicConfig which would be applicable to logs that would be pushed starting now. Note: Another PeriodicConfig might be applicable for future logs which can change index type.

func IsBlockOverlapping

func IsBlockOverlapping(b chunkenc.Block, with *LazyChunk, direction logproto.Direction) bool

func NewTableClient

func NewTableClient(name string, cfg Config) (chunk.TableClient, error)

NewTableClient creates a TableClient for managing tables for index/chunk store. ToDo: Add support in Cortex for registering custom table client like index client.

func RegisterCustomIndexClients

func RegisterCustomIndexClients(cfg *Config, registerer prometheus.Registerer)

func UsingBoltdbShipper

func UsingBoltdbShipper(configs []chunk.PeriodConfig) bool

UsingBoltdbShipper checks whether current or the next index type is boltdb-shipper, returns true if yes.

Types

type AsyncStore

type AsyncStore struct {
	chunk.Store
	// contains filtered or unexported fields
}

AsyncStore does querying to both ingesters and chunk store and combines the results after deduping them. This should be used when using an async store like boltdb-shipper. AsyncStore is meant to be used only in queriers or any other service other than ingesters. It should never be used in ingesters otherwise it would start spiraling around doing queries over and over again to other ingesters.

func NewAsyncStore

func NewAsyncStore(store chunk.Store, querier IngesterQuerier, queryIngestersWithin time.Duration) *AsyncStore

func (*AsyncStore) GetChunkRefs

func (a *AsyncStore) GetChunkRefs(ctx context.Context, userID string, from, through model.Time, matchers ...*labels.Matcher) ([][]chunk.Chunk, []*chunk.Fetcher, error)

type ChunkFilterer

type ChunkFilterer interface {
	ShouldFilter(metric labels.Labels) bool
}

ChunkFilterer filters chunks based on the metric.

type ChunkMetrics

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

func NewChunkMetrics

func NewChunkMetrics(r prometheus.Registerer, maxBatchSize int) *ChunkMetrics

type ChunkStoreConfig

type ChunkStoreConfig struct {
	chunk.StoreConfig `yaml:",inline"`

	// Limits query start time to be greater than now() - MaxLookBackPeriod, if set.
	// Will be deprecated in the next major release.
	MaxLookBackPeriod model.Duration `yaml:"max_look_back_period"`
}

func (*ChunkStoreConfig) RegisterFlags

func (cfg *ChunkStoreConfig) RegisterFlags(f *flag.FlagSet)

RegisterFlags adds the flags required to configure this flag set.

func (*ChunkStoreConfig) Validate

func (cfg *ChunkStoreConfig) Validate(logger log.Logger) error

type Config

type Config struct {
	storage.Config      `yaml:",inline"`
	MaxChunkBatchSize   int            `yaml:"max_chunk_batch_size"`
	BoltDBShipperConfig shipper.Config `yaml:"boltdb_shipper"`
}

Config is the loki storage configuration

func (*Config) RegisterFlags

func (cfg *Config) RegisterFlags(f *flag.FlagSet)

RegisterFlags adds the flags required to configure this flag set.

type IngesterQuerier

type IngesterQuerier interface {
	GetChunkIDs(ctx context.Context, from, through model.Time, matchers ...*labels.Matcher) ([]string, error)
}

type LazyChunk

type LazyChunk struct {
	Chunk   chunk.Chunk
	IsValid bool
	Fetcher *chunk.Fetcher
	// contains filtered or unexported fields
}

LazyChunk loads the chunk when it is accessed.

func (*LazyChunk) IsOverlapping

func (c *LazyChunk) IsOverlapping(with *LazyChunk, direction logproto.Direction) bool

func (*LazyChunk) Iterator

func (c *LazyChunk) Iterator(
	ctx context.Context,
	from, through time.Time,
	direction logproto.Direction,
	pipeline log.StreamPipeline,
	nextChunk *LazyChunk,
) (iter.EntryIterator, error)

Iterator returns an entry iterator. The iterator returned will cache overlapping block's entries with the next chunk if passed. This way when we re-use them for ordering across batches we don't re-decompress the data again.

func (*LazyChunk) SampleIterator

func (c *LazyChunk) SampleIterator(
	ctx context.Context,
	from, through time.Time,
	extractor log.StreamSampleExtractor,
	nextChunk *LazyChunk,
) (iter.SampleIterator, error)

SampleIterator returns an sample iterator. The iterator returned will cache overlapping block's entries with the next chunk if passed. This way when we re-use them for ordering across batches we don't re-decompress the data again.

type RequestChunkFilterer

type RequestChunkFilterer interface {
	ForRequest(ctx context.Context) ChunkFilterer
}

RequestChunkFilterer creates ChunkFilterer for a given request context.

type SchemaConfig

type SchemaConfig struct {
	chunk.SchemaConfig `yaml:",inline"`
}

SchemaConfig contains the config for our chunk index schemas

func (*SchemaConfig) Validate

func (cfg *SchemaConfig) Validate() error

Validate the schema config and returns an error if the validation doesn't pass

type Store

type Store interface {
	chunk.Store
	SelectSamples(ctx context.Context, req logql.SelectSampleParams) (iter.SampleIterator, error)
	SelectLogs(ctx context.Context, req logql.SelectLogParams) (iter.EntryIterator, error)
	GetSeries(ctx context.Context, req logql.SelectLogParams) ([]logproto.SeriesIdentifier, error)
	GetSchemaConfigs() []chunk.PeriodConfig
	SetChunkFilterer(chunkFilter RequestChunkFilterer)
}

Store is the Loki chunk store to retrieve and save chunks.

func NewStore

func NewStore(cfg Config, schemaCfg SchemaConfig, chunkStore chunk.Store, registerer prometheus.Registerer) (Store, error)

NewStore creates a new Loki Store using configuration supplied.