stats

package
v0.15.0-rc.10 Latest Latest
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Published: May 15, 2020 License: Apache-2.0 Imports: 4 Imported by: 0

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Types

type QueryStats

type QueryStats interface {
	Update(newDocs int) error
	Start()
	Stop()
}

QueryStats provides an interface for updating query stats.

func NewQueryStats

func NewQueryStats(tracker QueryStatsTracker) QueryStats

NewQueryStats enables query stats to be tracked within a recency lookback duration.

func NoOpQueryStats

func NoOpQueryStats() QueryStats

NoOpQueryStats returns inactive query stats.

type QueryStatsTracker

type QueryStatsTracker interface {
	Lookback() time.Duration
	TrackDocs(recentDocs int) error
}

QueryStatsTracker provides an interface for tracking current query stats.

func DefaultQueryStatsTrackerForMetrics

func DefaultQueryStatsTrackerForMetrics(opts instrument.Options) QueryStatsTracker

DefaultQueryStatsTrackerForMetrics provides a tracker implementation that emits query stats as metrics.

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