46 lines
1.5 KiB
Go
46 lines
1.5 KiB
Go
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package main
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//
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// Metrics definitions
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//
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import (
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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)
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var (
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// metricRequestsTotal counts the total number of requests
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metricRequestsTotal = promauto.NewCounter(prometheus.CounterOpts{
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Name: "oohelperd_requests_total",
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Help: "The total number of processed requests",
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})
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// metricRequestsByStatusCode counts the number of requests that
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// have returned a given status code to the caller.
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metricRequestsByStatusCode = promauto.NewCounterVec(prometheus.CounterOpts{
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Name: "oohelperd_requests_by_status_code",
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Help: "Total number of processed requests by status code",
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}, []string{"code"})
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// metricRequestsInflight counts the number of requests currently inflight.
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metricRequestsInflight = promauto.NewGauge(prometheus.GaugeOpts{
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Name: "oohelperd_requests_inflight",
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Help: "The number or requests currently inflight",
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})
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// metricMeasurementTime summarizes the time to perform a measurement.
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metricMeasurementTime = promauto.NewSummary(prometheus.SummaryOpts{
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Name: "oohelperd_measurement_time",
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Help: "Summarizes the time to perform a test-helper measurement (in seconds)",
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// See https://grafana.com/blog/2022/03/01/how-summary-metrics-work-in-prometheus/
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Objectives: map[float64]float64{
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0.25: 0.010, // 0.240 <= φ <= 0.260
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0.5: 0.010, // 0.490 <= φ <= 0.510
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0.75: 0.010, // 0.740 <= φ <= 0.760
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0.9: 0.010, // 0.899 <= φ <= 0.901
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0.99: 0.001, // 0.989 <= φ <= 0.991
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},
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})
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)
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