Method newSeries

modules/generator/registry/native_histogram.go:133–191

(lbls labels.Labels, value float64, traceID string, multiplier float64)

}

func (h *nativeHistogram) newSeries(lbls labels.Labels, value float64, traceID string, multiplier float64) *nativeHistogramSeries {
	// Configure histogram based on mode
	//
	// Native-only mode sets buckets to nil, and uses the histogram.Exemplars slice as the native exemplar format.
	// Hybrid mode uses classic buckets and bucket.Exemplar format for compatibility.

	var buckets []float64

	// The native histogram only uses the static buckets when the classic histograms are enabled.
	hasClassic := hasClassicHistograms(h.histogramOverride)
	if hasClassic {
		// Hybrid "both" mode: include classic buckets for compatibility
		buckets = h.buckets
	}

	hsh, bucketFactor, maxBucketNum, minResetDur := h.hashOverrides()

	// Configure native histogram options based on mode
	nativeOpts := prometheus.HistogramOpts{
		Name:    h.name(),
		Help:    "Native histogram for metric " + h.name(),
		Buckets: buckets, // nil for pure native, h.buckets for hybrid
		// Native histogram parameters
		NativeHistogramBucketFactor:     bucketFactor,
		NativeHistogramMaxBucketNumber:  maxBucketNum,
		NativeHistogramMinResetDuration: minResetDur,
	}

	if hasClassic {
		// Hybrid mode: let Prometheus decide defaults for compatibility
		nativeOpts.NativeHistogramMaxExemplars = -1 // Use default
	}

	newSeries := &nativeHistogramSeries{
		promHistogram: prometheus.NewHistogram(nativeOpts),
		lastUpdated:   0,
		firstSeries:   atomic.NewBool(true),
		overridesHash: hsh,
	}

	h.updateSeries(lbls.Hash(), newSeries, value, traceID, multiplier)

	lb := newSeriesLabelsBuilder(lbls, h.externalLabels)

	lb.Set(labels.MetricName, h.metricName)

	newSeries.labels = lb.Labels()
	newSeries.lb = lb

	// _count
	lb.Set(labels.MetricName, h.nameCount)
	newSeries.countLabels = lb.Labels()

	// _sum
	lb.Set(labels.MetricName, h.nameSum)
	newSeries.sumLabels = lb.Labels()

	return newSeries