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Only wait for cache syncs once in NodeController

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This commit is contained in:
Andy Goldstein 2016-10-14 15:36:31 -04:00
parent 928b8cbdb8
commit e7befa2a14
1 changed files with 79 additions and 82 deletions
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19
pkg/controller/node/nodecontroller.go
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@ -356,12 +356,16 @@ func NewNodeController(
// Run starts an asynchronous loop that monitors the status of cluster nodes. // Run starts an asynchronous loop that monitors the status of cluster nodes.
func (nc *NodeController) Run() { func (nc *NodeController) Run() {
// Incorporate the results of node status pushed from kubelet to master. go func() {
go wait.Until(func() { defer utilruntime.HandleCrash()
if !cache.WaitForCacheSync(wait.NeverStop, nc.nodeInformer.Informer().HasSynced, nc.podInformer.Informer().HasSynced, nc.daemonSetInformer.Informer().HasSynced) { if !cache.WaitForCacheSync(wait.NeverStop, nc.nodeInformer.Informer().HasSynced, nc.podInformer.Informer().HasSynced, nc.daemonSetInformer.Informer().HasSynced) {
glog.Errorf("NodeController timed out while waiting for informers to sync...") utilruntime.HandleError(errors.New("NodeController timed out while waiting for informers to sync..."))
return return
} }
// Incorporate the results of node status pushed from kubelet to master.
go wait.Until(func() {
if err := nc.monitorNodeStatus(); err != nil { if err := nc.monitorNodeStatus(); err != nil {
glog.Errorf("Error monitoring node status: %v", err) glog.Errorf("Error monitoring node status: %v", err)
} }
@ -380,10 +384,6 @@ func (nc *NodeController) Run() {
// c. If there are pods still terminating, wait for their estimated completion // c. If there are pods still terminating, wait for their estimated completion
// before retrying // before retrying
go wait.Until(func() { go wait.Until(func() {
if !cache.WaitForCacheSync(wait.NeverStop, nc.nodeInformer.Informer().HasSynced, nc.podInformer.Informer().HasSynced, nc.daemonSetInformer.Informer().HasSynced) {
glog.Errorf("NodeController timed out while waiting for informers to sync...")
return
}
nc.evictorLock.Lock() nc.evictorLock.Lock()
defer nc.evictorLock.Unlock() defer nc.evictorLock.Unlock()
for k := range nc.zonePodEvictor { for k := range nc.zonePodEvictor {
@ -417,10 +417,6 @@ func (nc *NodeController) Run() {
// TODO: replace with a controller that ensures pods that are terminating complete // TODO: replace with a controller that ensures pods that are terminating complete
// in a particular time period // in a particular time period
go wait.Until(func() { go wait.Until(func() {
if !cache.WaitForCacheSync(wait.NeverStop, nc.nodeInformer.Informer().HasSynced, nc.podInformer.Informer().HasSynced, nc.daemonSetInformer.Informer().HasSynced) {
glog.Errorf("NodeController timed out while waiting for informers to sync...")
return
}
nc.evictorLock.Lock() nc.evictorLock.Lock()
defer nc.evictorLock.Unlock() defer nc.evictorLock.Unlock()
for k := range nc.zoneTerminationEvictor { for k := range nc.zoneTerminationEvictor {
@ -447,6 +443,7 @@ func (nc *NodeController) Run() {
}) })
} }
}, nodeEvictionPeriod, wait.NeverStop) }, nodeEvictionPeriod, wait.NeverStop)
}()
} }
// monitorNodeStatus verifies node status are constantly updated by kubelet, and if not, // monitorNodeStatus verifies node status are constantly updated by kubelet, and if not,