querier

package
v1.6.0 Latest Latest
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 Go to latest Published: Dec 29, 2020 License: Apache-2.0 Imports: 73 Imported by: 3

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ChunksHandler 

func ChunksHandler(queryable storage.Queryable) http.Handler

ChunksHandler allows you to fetch a compressed tar of all the chunks for a given time range and set of matchers. Only works with the new unified chunk querier, which is enabled when you turn on ingester chunk query streaming.

func MetadataHandler added in v1.1.0 

func MetadataHandler(d Distributor) http.Handler

MetadataHandler returns metric metadata held by Cortex for a given tenant. It is kept and returned as a set.

func New 

func New(cfg Config, limits *validation.Overrides, distributor Distributor, stores []QueryableWithFilter, tombstonesLoader *purger.TombstonesLoader, reg prometheus.Registerer) (storage.SampleAndChunkQueryable, *promql.Engine)

New builds a queryable and promql engine.

func NewChunkStoreQueryable added in v0.7.0 

func NewChunkStoreQueryable(cfg Config, chunkStore chunkstore.ChunkStore) storage.Queryable

NewChunkStoreQueryable returns the storage.Queryable implementation against the chunks store.

func NewQueryable 

func NewQueryable(distributor QueryableWithFilter, stores []QueryableWithFilter, chunkIterFn chunkIteratorFunc, cfg Config, limits *validation.Overrides, tombstonesLoader *purger.TombstonesLoader) storage.Queryable

NewQueryable creates a new Queryable for cortex.

func RemoteReadHandler 

func RemoteReadHandler(q storage.Queryable) http.Handler

RemoteReadHandler handles Prometheus remote read requests.

Types

type BlocksConsistencyChecker added in v1.2.0 

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

func NewBlocksConsistencyChecker added in v1.2.0 

func NewBlocksConsistencyChecker(uploadGracePeriod, deletionGracePeriod time.Duration, logger log.Logger, reg prometheus.Registerer) *BlocksConsistencyChecker

func (*BlocksConsistencyChecker) Check added in v1.2.0 

func (c *BlocksConsistencyChecker) Check(knownBlocks bucketindex.Blocks, knownDeletionMarks map[ulid.ULID]*bucketindex.BlockDeletionMark, queriedBlocks []ulid.ULID) (missingBlocks []ulid.ULID)

type BlocksFinder added in v1.1.0 

type BlocksFinder interface {
	services.Service

	// GetBlocks returns known blocks for userID containing samples within the range minT
	// and maxT (milliseconds, both included). Returned blocks are sorted by MaxTime descending.
	GetBlocks(ctx context.Context, userID string, minT, maxT int64) (bucketindex.Blocks, map[ulid.ULID]*bucketindex.BlockDeletionMark, error)
}

BlocksFinder is the interface used to find blocks for a given user and time range.

type BlocksScanner added in v1.1.0 

type BlocksScanner struct {
	services.Service
	// contains filtered or unexported fields
}

func NewBlocksScanner added in v1.1.0 

func NewBlocksScanner(cfg BlocksScannerConfig, bucketClient objstore.Bucket, logger log.Logger, reg prometheus.Registerer) *BlocksScanner

func (*BlocksScanner) GetBlocks added in v1.1.0 

func (d *BlocksScanner) GetBlocks(_ context.Context, userID string, minT, maxT int64) (bucketindex.Blocks, map[ulid.ULID]*bucketindex.BlockDeletionMark, error)

GetBlocks returns known blocks for userID containing samples within the range minT and maxT (milliseconds, both included). Returned blocks are sorted by MaxTime descending.

type BlocksScannerConfig added in v1.1.0 

type BlocksScannerConfig struct {
	ScanInterval             time.Duration
	TenantsConcurrency       int
	MetasConcurrency         int
	CacheDir                 string
	ConsistencyDelay         time.Duration
	IgnoreDeletionMarksDelay time.Duration
}

type BlocksStoreClient added in v1.2.0 

type BlocksStoreClient interface {
	storegatewaypb.StoreGatewayClient

	// RemoteAddress returns the address of the remote store-gateway and is used to uniquely
	// identify a store-gateway backend instance.
	RemoteAddress() string
}

BlocksStoreClient is the interface that should be implemented by any client used to query a backend store-gateway.

type BlocksStoreLimits added in v1.3.0 

type BlocksStoreLimits interface {
	MaxChunksPerQuery(userID string) int
	StoreGatewayTenantShardSize(userID string) int
}

BlocksStoreLimits is the interface that should be implemented by the limits provider.

type BlocksStoreQueryable added in v1.1.0 

type BlocksStoreQueryable struct {
	services.Service
	// contains filtered or unexported fields
}

BlocksStoreQueryable is a queryable which queries blocks storage via the store-gateway.

func NewBlocksStoreQueryable added in v1.1.0 

func NewBlocksStoreQueryable(stores BlocksStoreSet, finder BlocksFinder, consistency *BlocksConsistencyChecker, limits BlocksStoreLimits, queryStoreAfter time.Duration, logger log.Logger, reg prometheus.Registerer) (*BlocksStoreQueryable, error)

func NewBlocksStoreQueryableFromConfig added in v1.1.0 

func NewBlocksStoreQueryableFromConfig(querierCfg Config, gatewayCfg storegateway.Config, storageCfg cortex_tsdb.BlocksStorageConfig, limits BlocksStoreLimits, logger log.Logger, reg prometheus.Registerer) (*BlocksStoreQueryable, error)

func (*BlocksStoreQueryable) Querier added in v1.1.0 

func (q *BlocksStoreQueryable) Querier(ctx context.Context, mint, maxt int64) (storage.Querier, error)

Querier returns a new Querier on the storage.

type BlocksStoreSet added in v1.1.0 

type BlocksStoreSet interface {
	services.Service

	// GetClientsFor returns the store gateway clients that should be used to
	// query the set of blocks in input. The exclude parameter is the map of
	// blocks -> store-gateway addresses that should be excluded.
	GetClientsFor(userID string, blockIDs []ulid.ULID, exclude map[ulid.ULID][]string) (map[BlocksStoreClient][]ulid.ULID, error)
}

BlocksStoreSet is the interface used to get the clients to query series on a set of blocks.

type Config 

type Config struct {
	MaxConcurrent        int           `yaml:"max_concurrent"`
	Timeout              time.Duration `yaml:"timeout"`
	Iterators            bool          `yaml:"iterators"`
	BatchIterators       bool          `yaml:"batch_iterators"`
	IngesterStreaming    bool          `yaml:"ingester_streaming"`
	MaxSamples           int           `yaml:"max_samples"`
	QueryIngestersWithin time.Duration `yaml:"query_ingesters_within"`
	QueryStoreForLabels  bool          `yaml:"query_store_for_labels_enabled"`

	// QueryStoreAfter the time after which queries should also be sent to the store and not just ingesters.
	QueryStoreAfter    time.Duration `yaml:"query_store_after"`
	MaxQueryIntoFuture time.Duration `yaml:"max_query_into_future"`

	// The default evaluation interval for the promql engine.
	// Needs to be configured for subqueries to work as it is the default
	// step if not specified.
	DefaultEvaluationInterval time.Duration `yaml:"default_evaluation_interval"`

	// Directory for ActiveQueryTracker. If empty, ActiveQueryTracker will be disabled and MaxConcurrent will not be applied (!).
	// ActiveQueryTracker logs queries that were active during the last crash, but logs them on the next startup.
	// However, we need to use active query tracker, otherwise we cannot limit Max Concurrent queries in the PromQL
	// engine.
	ActiveQueryTrackerDir string `yaml:"active_query_tracker_dir"`
	// LookbackDelta determines the time since the last sample after which a time
	// series is considered stale.
	LookbackDelta time.Duration `yaml:"lookback_delta"`

	// Blocks storage only.
	StoreGatewayAddresses string           `yaml:"store_gateway_addresses"`
	StoreGatewayClient    tls.ClientConfig `yaml:"store_gateway_client"`

	SecondStoreEngine        string       `yaml:"second_store_engine"`
	UseSecondStoreBeforeTime flagext.Time `yaml:"use_second_store_before_time"`

	ShuffleShardingIngestersLookbackPeriod time.Duration `yaml:"shuffle_sharding_ingesters_lookback_period"`
}

Config contains the configuration require to create a querier

func (*Config) GetStoreGatewayAddresses added in v1.1.0 

func (cfg *Config) GetStoreGatewayAddresses() []string

func (*Config) RegisterFlags 

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

RegisterFlags adds the flags required to config this to the given FlagSet.

func (*Config) Validate added in v0.7.0 

func (cfg *Config) Validate() error

Validate the config

type Distributor 

type Distributor interface {
	Query(ctx context.Context, from, to model.Time, matchers ...*labels.Matcher) (model.Matrix, error)
	QueryStream(ctx context.Context, from, to model.Time, matchers ...*labels.Matcher) (*client.QueryStreamResponse, error)
	LabelValuesForLabelName(ctx context.Context, from, to model.Time, label model.LabelName) ([]string, error)
	LabelNames(context.Context, model.Time, model.Time) ([]string, error)
	MetricsForLabelMatchers(ctx context.Context, from, through model.Time, matchers ...*labels.Matcher) ([]metric.Metric, error)
	MetricsMetadata(ctx context.Context) ([]scrape.MetricMetadata, error)
}

Distributor is the read interface to the distributor, made an interface here to reduce package coupling.

type DummyAlertmanagerRetriever 

type DummyAlertmanagerRetriever struct{}

DummyAlertmanagerRetriever implements AlertmanagerRetriever.

func (DummyAlertmanagerRetriever) Alertmanagers 

func (DummyAlertmanagerRetriever) Alertmanagers() []*url.URL

Alertmanagers implements AlertmanagerRetriever.

func (DummyAlertmanagerRetriever) DroppedAlertmanagers 

func (DummyAlertmanagerRetriever) DroppedAlertmanagers() []*url.URL

DroppedAlertmanagers implements AlertmanagerRetriever.

type DummyRulesRetriever 

type DummyRulesRetriever struct{}

DummyRulesRetriever implements RulesRetriever.

func (DummyRulesRetriever) AlertingRules 

func (DummyRulesRetriever) AlertingRules() []*rules.AlertingRule

AlertingRules implements RulesRetriever.

func (DummyRulesRetriever) RuleGroups 

func (DummyRulesRetriever) RuleGroups() []*rules.Group

RuleGroups implements RulesRetriever.

type DummyTargetRetriever 

type DummyTargetRetriever struct{}

DummyTargetRetriever implements github.com/prometheus/prometheus/web/api/v1.targetRetriever.

func (DummyTargetRetriever) TargetsActive 

func (DummyTargetRetriever) TargetsActive() map[string][]*scrape.Target

TargetsActive implements targetRetriever.

func (DummyTargetRetriever) TargetsDropped 

func (DummyTargetRetriever) TargetsDropped() map[string][]*scrape.Target

TargetsDropped implements targetRetriever.

type QueryableWithFilter added in v1.3.0 

type QueryableWithFilter interface {
	storage.Queryable

	// UseQueryable returns true if this queryable should be used to satisfy the query for given time range.
	// Query min and max time are in milliseconds since epoch.
	UseQueryable(now time.Time, queryMinT, queryMaxT int64) bool
}

QueryableWithFilter extends Queryable interface with `UseQueryable` filtering function.

func UseAlwaysQueryable added in v1.3.0 

func UseAlwaysQueryable(q storage.Queryable) QueryableWithFilter

Wraps storage.Queryable into QueryableWithFilter, with no query filtering.

func UseBeforeTimestampQueryable added in v1.3.0 

func UseBeforeTimestampQueryable(queryable storage.Queryable, ts time.Time) QueryableWithFilter

Returns QueryableWithFilter, that is used only if query starts before given timestamp. If timestamp is zero (time.IsZero), queryable is always used.

type SeriesWithChunks added in v0.7.0 

type SeriesWithChunks interface {
	storage.Series

	// Returns all chunks with series data.
	Chunks() []chunk.Chunk
}

SeriesWithChunks extends storage.Series interface with direct access to Cortex chunks.

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