metrics

Documentation

Index

• Variables
• func MsecSince(startTime time.Time) float64
• func ObservePebbleMetrics(ctx context.Context, interval time.Duration, db *pebble.DB)

Variables

var (
	CacheHits        = stats.Int64("core/cache/hits", "Number of retrieval cache hits", stats.UnitDimensionless)
	CacheMisses      = stats.Int64("core/cache/misses", "Number of retrieval cache misses", stats.UnitDimensionless)
	CacheMultihashes = stats.Int64("core/cache/multihashes", "Number of cached multihashes", stats.UnitDimensionless)
	CacheValues      = stats.Int64("core/cache/values", "Number of cached values", stats.UnitDimensionless)
	CacheEvictions   = stats.Int64("core/cache/evictions", "Number of indexes evicted from cache", stats.UnitDimensionless)
	CacheMisuse      = stats.Int64("core/cache/misuse", "Cache clears due to high value to multihash ratio (indexer misuse)", stats.UnitDimensionless)

	GetIndexLatency   = stats.Float64("core/get_index_latency", "Internal lookup time for a single index", stats.UnitMilliseconds)
	IngestMultihashes = stats.Int64("core/ingest_multihashes", "Number of multihashes put into the indexer", stats.UnitDimensionless)
	RemovedProviders  = stats.Int64("core/removed_providers", "Number of providers removed from indexer", stats.UnitDimensionless)
	StoreSize         = stats.Int64("core/storage_size", "Bytes of storage used to store the indexed content", stats.UnitBytes)

	DHMultihashLatency = stats.Float64("core/dh_multihash_latency", "Time that the indexer spends on sending encrypted multihashes to dhstore", stats.UnitMilliseconds)
	DHMetadataLatency  = stats.Float64("core/dh_metadata_latency", "Time that the indexer spends on sending encrypted metadata to dhstore", stats.UnitMilliseconds)
)

Measures

var DefaultViews = []*view.View{
	cacheHitsView,
	cacheMissesView,
	cacheMultihashesView,
	cacheValuesView,
	cacheEvictionsView,
	cacheMisuseView,
	getIndexLatencyView,
	ingestMultihashesView,
	removedProvidersView,
	storeSizeView,
	dhMultihashLatency,
	dhMetadataLatency,
}

DefaultViews with all views in it.

var (
	Method, _ = tag.NewKey("method")
)

Keys

var PebbleViews = []*view.View{
	flushCountView,
	readAmpView,
	cacheSizeView,
	cacheCountView,
	pebbleCacheHitsView,
	pebbleCacheMissesView,
	compactCountView,
	compactEstimatedDebtView,
	compactInProgressBytesView,
	compactNumInProgressView,
	compactMarkedFilesView,
	l0NumFilesView,
}

PebbleViews contains pebble specific views

Functions

func MsecSince

func MsecSince(startTime time.Time) float64

func ObservePebbleMetrics

func ObservePebbleMetrics(ctx context.Context, interval time.Duration, db *pebble.DB)

ObservePebbleMetrics is used to periodically report metrics from the pebble database