khenaidoo | 2672188 | 2021-08-11 17:42:52 -0400 | [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 snap |
| 16 | |
| 17 | import "github.com/prometheus/client_golang/prometheus" |
| 18 | |
| 19 | var ( |
| 20 | // TODO: save_fsync latency? |
| 21 | saveDurations = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| 22 | Namespace: "etcd_debugging", |
| 23 | Subsystem: "snap", |
| 24 | Name: "save_total_duration_seconds", |
| 25 | Help: "The total latency distributions of save called by snapshot.", |
| 26 | Buckets: prometheus.ExponentialBuckets(0.001, 2, 14), |
| 27 | }) |
| 28 | |
| 29 | marshallingDurations = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| 30 | Namespace: "etcd_debugging", |
| 31 | Subsystem: "snap", |
| 32 | Name: "save_marshalling_duration_seconds", |
| 33 | Help: "The marshalling cost distributions of save called by snapshot.", |
| 34 | Buckets: prometheus.ExponentialBuckets(0.001, 2, 14), |
| 35 | }) |
| 36 | |
| 37 | snapDBSaveSec = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| 38 | Namespace: "etcd", |
| 39 | Subsystem: "snap_db", |
| 40 | Name: "save_total_duration_seconds", |
| 41 | Help: "The total latency distributions of v3 snapshot save", |
| 42 | |
| 43 | // lowest bucket start of upper bound 0.1 sec (100 ms) with factor 2 |
| 44 | // highest bucket start of 0.1 sec * 2^9 == 51.2 sec |
| 45 | Buckets: prometheus.ExponentialBuckets(0.1, 2, 10), |
| 46 | }) |
| 47 | |
| 48 | snapDBFsyncSec = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| 49 | Namespace: "etcd", |
| 50 | Subsystem: "snap_db", |
| 51 | Name: "fsync_duration_seconds", |
| 52 | Help: "The latency distributions of fsyncing .snap.db file", |
| 53 | |
| 54 | // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2 |
| 55 | // highest bucket start of 0.001 sec * 2^13 == 8.192 sec |
| 56 | Buckets: prometheus.ExponentialBuckets(0.001, 2, 14), |
| 57 | }) |
| 58 | ) |
| 59 | |
| 60 | func init() { |
| 61 | prometheus.MustRegister(saveDurations) |
| 62 | prometheus.MustRegister(marshallingDurations) |
| 63 | prometheus.MustRegister(snapDBSaveSec) |
| 64 | prometheus.MustRegister(snapDBFsyncSec) |
| 65 | } |