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30 lines
968 B
30 lines
968 B
// Copyright 2017 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metrics
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import (
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"github.com/prometheus/client_golang/prometheus"
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)
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// Metrics for the timestamp oracle.
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var (
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TSFutureWaitDuration = prometheus.NewHistogram(
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prometheus.HistogramOpts{
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Namespace: "tidb",
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Subsystem: "pdclient",
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Name: "ts_future_wait_seconds",
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Help: "Bucketed histogram of seconds cost for waiting timestamp future.",
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Buckets: prometheus.ExponentialBuckets(0.000005, 2, 30), // 5us ~ 2560s
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})
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)
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