Struct nativeHistogram

modules/generator/registry/native_histogram.go:20–55

)

type nativeHistogram struct {
	metricName string

	// TODO: we can also switch to a HistrogramVec and let prometheus handle the labels. This would remove the series map
	//  and all locking around it.
	//  Downside: you need to list labels at creation time while our interfaces only pass labels at observe time, this
	//  will requires a bigger refactor, maybe something for a second pass?
	//  Might break processors that have variable amount of labels...
	//  promHistogram prometheus.HistogramVec

	seriesMtx    sync.Mutex
	series       map[uint64]*nativeHistogramSeries
	seriesDemand *Cardinality

	lifecycler Limiter

	buckets []float64

	traceIDLabelName string

	// Can be "native", classic", "both" to determine which histograms to
	// generate.  A diff in the configured value on the processors will cause a
	// reload of the process, and a new instance of the histogram to be created.
	histogramOverride HistogramMode

	overrides Overrides
	// The tenant for this registry instance is received at create time and does not change.
	tenant string

	externalLabels map[string]string

	// classic
	nameCount  string
	nameSum    string
	nameBucket string
}

type nativeHistogramSeries struct {
	// labels should not be modified after creation