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Merge pull request #29100 from wojtek-t/pods_can_never_be_scheduled_again

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Automatic merge from submit-queue

Fix disappearing pods in scheduler

Fix #29098
This commit is contained in:
k8s-merge-robot 2016-07-19 03:26:16 -07:00 committed by GitHub
commit b0bcb8f7b2
1 changed files with 15 additions and 5 deletions
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18
plugin/pkg/scheduler/factory/factory.go
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@ -48,6 +48,8 @@ import (
const ( const (
SchedulerAnnotationKey = "scheduler.alpha.kubernetes.io/name" SchedulerAnnotationKey = "scheduler.alpha.kubernetes.io/name"
initialGetBackoff = 100 * time.Millisecond
maximalGetBackoff = time.Minute
) )
// ConfigFactory knows how to fill out a scheduler config with its support functions. // ConfigFactory knows how to fill out a scheduler config with its support functions.
@ -531,13 +533,21 @@ func (factory *ConfigFactory) makeDefaultErrorFunc(backoff *podBackoff, podQueue
} }
// Get the pod again; it may have changed/been scheduled already. // Get the pod again; it may have changed/been scheduled already.
pod = &api.Pod{} pod = &api.Pod{}
err := factory.Client.Get().Namespace(podID.Namespace).Resource("pods").Name(podID.Name).Do().Into(pod) getBackoff := initialGetBackoff
if err != nil { for {
if !errors.IsNotFound(err) { if err := factory.Client.Get().Namespace(podID.Namespace).Resource("pods").Name(podID.Name).Do().Into(pod); err == nil {
glog.Errorf("Error getting pod %v for retry: %v; abandoning", podID, err) break
} }
if errors.IsNotFound(err) {
glog.Warning("A pod %v no longer exists", podID)
return return
} }
glog.Errorf("Error getting pod %v for retry: %v; retrying...", podID, err)
if getBackoff = getBackoff * 2; getBackoff > maximalGetBackoff {
getBackoff = maximalGetBackoff
}
time.Sleep(getBackoff)
}
if pod.Spec.NodeName == "" { if pod.Spec.NodeName == "" {
podQueue.AddIfNotPresent(pod) podQueue.AddIfNotPresent(pod)
} }