https://github.com/etcd-io/etcd
Tip revision: 33245c6b5b49130ca99280408fadfab01aac0e48 authored by Gyuho Lee on 15 June 2018, 16:41:56 UTC
version: 3.3.8
version: 3.3.8
Tip revision: 33245c6
metrics.go
// Copyright 2015 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 mvcc
import (
"sync"
"github.com/prometheus/client_golang/prometheus"
)
var (
rangeCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "range_total",
Help: "Total number of ranges seen by this member.",
})
putCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "put_total",
Help: "Total number of puts seen by this member.",
})
deleteCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "delete_total",
Help: "Total number of deletes seen by this member.",
})
txnCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "txn_total",
Help: "Total number of txns seen by this member.",
})
keysGauge = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "keys_total",
Help: "Total number of keys.",
})
watchStreamGauge = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "watch_stream_total",
Help: "Total number of watch streams.",
})
watcherGauge = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "watcher_total",
Help: "Total number of watchers.",
})
slowWatcherGauge = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "slow_watcher_total",
Help: "Total number of unsynced slow watchers.",
})
totalEventsCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "events_total",
Help: "Total number of events sent by this member.",
})
pendingEventsGauge = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "pending_events_total",
Help: "Total number of pending events to be sent.",
})
indexCompactionPauseDurations = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "index_compaction_pause_duration_milliseconds",
Help: "Bucketed histogram of index compaction pause duration.",
// 0.5ms -> 1second
Buckets: prometheus.ExponentialBuckets(0.5, 2, 12),
})
dbCompactionPauseDurations = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "db_compaction_pause_duration_milliseconds",
Help: "Bucketed histogram of db compaction pause duration.",
// 1ms -> 4second
Buckets: prometheus.ExponentialBuckets(1, 2, 13),
})
dbCompactionTotalDurations = prometheus.NewHistogram(
prometheus.HistogramOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "db_compaction_total_duration_milliseconds",
Help: "Bucketed histogram of db compaction total duration.",
// 100ms -> 800second
Buckets: prometheus.ExponentialBuckets(100, 2, 14),
})
dbCompactionKeysCounter = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "db_compaction_keys_total",
Help: "Total number of db keys compacted.",
})
dbTotalSize = prometheus.NewGaugeFunc(prometheus.GaugeOpts{
Namespace: "etcd_debugging",
Subsystem: "mvcc",
Name: "db_total_size_in_bytes",
Help: "Total size of the underlying database in bytes.",
},
func() float64 {
reportDbTotalSizeInBytesMu.RLock()
defer reportDbTotalSizeInBytesMu.RUnlock()
return reportDbTotalSizeInBytes()
},
)
// overridden by mvcc initialization
reportDbTotalSizeInBytesMu sync.RWMutex
reportDbTotalSizeInBytes func() float64 = func() float64 { return 0 }
)
func init() {
prometheus.MustRegister(rangeCounter)
prometheus.MustRegister(putCounter)
prometheus.MustRegister(deleteCounter)
prometheus.MustRegister(txnCounter)
prometheus.MustRegister(keysGauge)
prometheus.MustRegister(watchStreamGauge)
prometheus.MustRegister(watcherGauge)
prometheus.MustRegister(slowWatcherGauge)
prometheus.MustRegister(totalEventsCounter)
prometheus.MustRegister(pendingEventsGauge)
prometheus.MustRegister(indexCompactionPauseDurations)
prometheus.MustRegister(dbCompactionPauseDurations)
prometheus.MustRegister(dbCompactionTotalDurations)
prometheus.MustRegister(dbCompactionKeysCounter)
prometheus.MustRegister(dbTotalSize)
}
// ReportEventReceived reports that an event is received.
// This function should be called when the external systems received an
// event from mvcc.Watcher.
func ReportEventReceived(n int) {
pendingEventsGauge.Sub(float64(n))
totalEventsCounter.Add(float64(n))
}