| // Copyright 2016 The etcd Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package backend |
| |
| import "github.com/prometheus/client_golang/prometheus" |
| |
| var ( |
| commitDurations = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| Namespace: "etcd", |
| Subsystem: "disk", |
| Name: "backend_commit_duration_seconds", |
| Help: "The latency distributions of commit called by backend.", |
| |
| // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2 |
| // highest bucket start of 0.001 sec * 2^13 == 8.192 sec |
| Buckets: prometheus.ExponentialBuckets(0.001, 2, 14), |
| }) |
| |
| defragDurations = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| Namespace: "etcd", |
| Subsystem: "disk", |
| Name: "backend_defrag_duration_seconds", |
| Help: "The latency distribution of backend defragmentation.", |
| |
| // 100 MB usually takes 1 sec, so start with 10 MB of 100 ms |
| // lowest bucket start of upper bound 0.1 sec (100 ms) with factor 2 |
| // highest bucket start of 0.1 sec * 2^12 == 409.6 sec |
| Buckets: prometheus.ExponentialBuckets(.1, 2, 13), |
| }) |
| |
| snapshotDurations = prometheus.NewHistogram(prometheus.HistogramOpts{ |
| Namespace: "etcd", |
| Subsystem: "disk", |
| Name: "backend_snapshot_duration_seconds", |
| Help: "The latency distribution of backend snapshots.", |
| |
| // lowest bucket start of upper bound 0.01 sec (10 ms) with factor 2 |
| // highest bucket start of 0.01 sec * 2^16 == 655.36 sec |
| Buckets: prometheus.ExponentialBuckets(.01, 2, 17), |
| }) |
| ) |
| |
| func init() { |
| prometheus.MustRegister(commitDurations) |
| prometheus.MustRegister(defragDurations) |
| prometheus.MustRegister(snapshotDurations) |
| } |