func init()

in registry/datastore/metrics/metrics.go [83:196]
104 lines of code
1 McCabe index (conditional complexity)

func init() {
	queryDurationHist = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      queryDurationName,
			Help:      queryDurationDesc,
			Buckets:   prometheus.DefBuckets,
		},
		[]string{queryNameLabel},
	)

	queryTotal = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      queryTotalName,
			Help:      queryTotalDesc,
		},
		[]string{queryNameLabel},
	)

	lbPoolSize = prometheus.NewGauge(
		prometheus.GaugeOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbPoolSizeName,
			Help:      lbPoolSizeDesc,
		})

	lbLSNCacheOpDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbLSNCacheOpDurationName,
			Help:      lbLSNCacheOpDurationDesc,
			Buckets:   prometheus.DefBuckets,
		},
		[]string{lbLSNCacheOpLabel, errorLabel},
	)

	lbLSNCacheHits = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbLSNCacheHitsName,
			Help:      lbLSNCacheHitsDesc,
		},
		[]string{lbLSNCacheResultLabel},
	)

	lbDNSLookupDurationHist = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbDNSLookupDurationName,
			Help:      lbDNSLookupDurationDesc,
			Buckets:   prometheus.DefBuckets,
		},
		[]string{lookupTypeLabel, errorLabel},
	)

	lbPoolEvents = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbPoolEventsName,
			Help:      lbPoolEventsDesc,
		},
		[]string{lbPoolEventsEventLabel},
	)

	lbTargets = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbTargetsName,
			Help:      lbTargetsDesc,
		},
		[]string{lbTargetTypeLabel, lbFallbackLabel, lbReasonLabel},
	)

	lbLagBytes = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbLagBytesName,
			Help:      lbLagBytesDesc,
		},
		[]string{replicaLabel},
	)

	lbLagSeconds = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Namespace: metrics.NamespacePrefix,
			Subsystem: subsystem,
			Name:      lbLagSecondsName,
			Help:      lbLagSecondsDesc,
			Buckets:   []float64{0.001, 0.01, 0.1, 0.5, 1, 5, 10, 20, 30, 60}, // 1ms to 60s
		},
		[]string{replicaLabel},
	)

	prometheus.MustRegister(queryDurationHist)
	prometheus.MustRegister(queryTotal)
	prometheus.MustRegister(lbPoolSize)
	prometheus.MustRegister(lbLSNCacheOpDuration)
	prometheus.MustRegister(lbLSNCacheHits)
	prometheus.MustRegister(lbDNSLookupDurationHist)
	prometheus.MustRegister(lbPoolEvents)
	prometheus.MustRegister(lbTargets)
	prometheus.MustRegister(lbLagBytes)
	prometheus.MustRegister(lbLagSeconds)
}