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Merge pull request #9606 from jpbetz/automated-cherry-pick-of-#9587-release-3.1

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Automated cherry pick of #9587
This commit is contained in:
Gyuho Lee 2018-04-23 12:48:23 -07:00 committed by GitHub
commit 5da3a7232f
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2 changed files with 12 additions and 0 deletions
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7
etcdserver/metrics.go
View File

@ -28,6 +28,12 @@ var (
Name: "has_leader",
Help: "Whether or not a leader exists. 1 is existence, 0 is not.",
})
isLeader = prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: "etcd",
Subsystem: "server",
Name: "is_leader",
Help: "Whether or not this member is a leader. 1 if is, 0 otherwise.",
})
leaderChanges = prometheus.NewCounter(prometheus.CounterOpts{
Namespace: "etcd",
Subsystem: "server",
@ -62,6 +68,7 @@ var (
func init() {
prometheus.MustRegister(hasLeader)
prometheus.MustRegister(isLeader)
prometheus.MustRegister(leaderChanges)
prometheus.MustRegister(proposalsCommitted)
prometheus.MustRegister(proposalsApplied)

5
etcdserver/raft.go
View File

@ -171,6 +171,11 @@ func (r *raftNode) start(rh *raftReadyHandler) {
atomic.StoreUint64(&r.lead, rd.SoftState.Lead)
islead = rd.RaftState == raft.StateLeader
if islead {
isLeader.Set(1)
} else {
isLeader.Set(0)
}
rh.updateLeadership()
}