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enhance leaderelection code
Kubernetes-commit: 9fe2a5a430055657186491c23e85cc489e401bc7
This commit is contained in:
parent
037e6c200e
commit
7d6d732419
@ -130,10 +130,6 @@ type LeaderCallbacks struct {
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}
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// LeaderElector is a leader election client.
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//
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// possible future methods:
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// * (le *LeaderElector) IsLeader()
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// * (le *LeaderElector) GetLeader()
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type LeaderElector struct {
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config LeaderElectionConfig
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// internal bookkeeping
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@ -259,14 +255,14 @@ func (le *LeaderElector) tryAcquireOrRenew() bool {
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le.observedTime = time.Now()
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}
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if le.observedTime.Add(le.config.LeaseDuration).After(now.Time) &&
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oldLeaderElectionRecord.HolderIdentity != le.config.Lock.Identity() {
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!le.IsLeader() {
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glog.V(4).Infof("lock is held by %v and has not yet expired", oldLeaderElectionRecord.HolderIdentity)
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return false
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}
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// 3. We're going to try to update. The leaderElectionRecord is set to it's default
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// here. Let's correct it before updating.
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if oldLeaderElectionRecord.HolderIdentity == le.config.Lock.Identity() {
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if le.IsLeader() {
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leaderElectionRecord.AcquireTime = oldLeaderElectionRecord.AcquireTime
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leaderElectionRecord.LeaderTransitions = oldLeaderElectionRecord.LeaderTransitions
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} else {
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@ -283,12 +279,12 @@ func (le *LeaderElector) tryAcquireOrRenew() bool {
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return true
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}
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func (l *LeaderElector) maybeReportTransition() {
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if l.observedRecord.HolderIdentity == l.reportedLeader {
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func (le *LeaderElector) maybeReportTransition() {
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if le.observedRecord.HolderIdentity == le.reportedLeader {
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return
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}
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l.reportedLeader = l.observedRecord.HolderIdentity
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if l.config.Callbacks.OnNewLeader != nil {
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go l.config.Callbacks.OnNewLeader(l.reportedLeader)
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le.reportedLeader = le.observedRecord.HolderIdentity
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if le.config.Callbacks.OnNewLeader != nil {
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go le.config.Callbacks.OnNewLeader(le.reportedLeader)
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}
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}
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