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prometheus.go
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prometheus.go
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// Copyright (C) 2021 The GoHBase Authors. All rights reserved.
// This file is part of GoHBase.
// Use of this source code is governed by the Apache License 2.0
// that can be found in the COPYING file.
package gohbase
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)
var operationDurationSeconds = promauto.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "gohbase",
Name: "operation_duration_seconds",
Help: "Time in seconds for operation to complete",
// >>> [0.04*(2**i) for i in range(11)]
// [0.04, 0.08, 0.16, 0.32, 0.64, 1.28, 2.56, 5.12, 10.24, 20.48, 40.96]
// Meaning 40ms, 80ms, 160ms, 320ms, 640ms, 1.28s, ... max 40.96s
// (most requests have a 30s timeout by default at the Envoy level)
Buckets: prometheus.ExponentialBuckets(0.04, 2, 11),
},
[]string{"operation", "result"},
)