mirror of
https://github.com/etcd-io/etcd.git
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12bc2bba36
Fix https://github.com/coreos/etcd/issues/8050. Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
// Copyright 2015 The etcd Authors
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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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 etcdserver
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import (
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"time"
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"github.com/coreos/etcd/pkg/runtime"
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"github.com/prometheus/client_golang/prometheus"
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)
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var (
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hasLeader = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: "etcd",
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Subsystem: "server",
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Name: "has_leader",
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Help: "Whether or not a leader exists. 1 is existence, 0 is not.",
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})
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leaderChanges = prometheus.NewCounter(prometheus.CounterOpts{
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Namespace: "etcd",
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Subsystem: "server",
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Name: "leader_changes_seen_total",
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Help: "The number of leader changes seen.",
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})
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proposalsCommitted = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: "etcd",
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Subsystem: "server",
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Name: "proposals_committed_total",
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Help: "The total number of consensus proposals committed.",
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})
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proposalsApplied = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: "etcd",
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Subsystem: "server",
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Name: "proposals_applied_total",
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Help: "The total number of consensus proposals applied.",
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})
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proposalsPending = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: "etcd",
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Subsystem: "server",
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Name: "proposals_pending",
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Help: "The current number of pending proposals to commit.",
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})
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proposalsFailed = prometheus.NewCounter(prometheus.CounterOpts{
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Namespace: "etcd",
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Subsystem: "server",
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Name: "proposals_failed_total",
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Help: "The total number of failed proposals seen.",
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})
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leaseExpired = prometheus.NewCounter(prometheus.CounterOpts{
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Namespace: "etcd_debugging",
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Subsystem: "server",
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Name: "lease_expired_total",
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Help: "The total number of expired leases.",
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})
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)
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func init() {
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prometheus.MustRegister(hasLeader)
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prometheus.MustRegister(leaderChanges)
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prometheus.MustRegister(proposalsCommitted)
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prometheus.MustRegister(proposalsApplied)
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prometheus.MustRegister(proposalsPending)
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prometheus.MustRegister(proposalsFailed)
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prometheus.MustRegister(leaseExpired)
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}
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func monitorFileDescriptor(done <-chan struct{}) {
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ticker := time.NewTicker(5 * time.Second)
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defer ticker.Stop()
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for {
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used, err := runtime.FDUsage()
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if err != nil {
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plog.Errorf("cannot monitor file descriptor usage (%v)", err)
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return
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}
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limit, err := runtime.FDLimit()
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if err != nil {
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plog.Errorf("cannot monitor file descriptor usage (%v)", err)
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return
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}
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if used >= limit/5*4 {
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plog.Warningf("80%% of the file descriptor limit is used [used = %d, limit = %d]", used, limit)
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}
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select {
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case <-ticker.C:
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case <-done:
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return
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}
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}
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}
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