| khenaidoo | ab1f7bd | 2019-11-14 14:00:27 -0500 | [diff] [blame^] | 1 | // Copyright 2015 The etcd Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package wal |
| 16 | |
| 17 | import "github.com/prometheus/client_golang/prometheus" |
| 18 | |
| 19 | var ( |
| 20 | walFsyncSec = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| 21 | Namespace: "etcd", |
| 22 | Subsystem: "disk", |
| 23 | Name: "wal_fsync_duration_seconds", |
| 24 | Help: "The latency distributions of fsync called by WAL.", |
| 25 | |
| 26 | // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2 |
| 27 | // highest bucket start of 0.001 sec * 2^13 == 8.192 sec |
| 28 | Buckets: prometheus.ExponentialBuckets(0.001, 2, 14), |
| 29 | }) |
| 30 | ) |
| 31 | |
| 32 | func init() { |
| 33 | prometheus.MustRegister(walFsyncSec) |
| 34 | } |