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Merge pull request #37813 from kubernetes/revert-36625-branch-eliminate-recursive-call-attemptToUpdateMasterRoleLabelsAndTaints

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Automatic merge from submit-queue (batch tested with PRs 35300, 36709, 37643, 37813, 37697)

Revert "[kubeadm] use iteration instead of recursion in function"

Reverts kubernetes/kubernetes#36625

Removing the recursive call means that `n` is never updated, so you never succeed in the update, and you've creating an infinite loop.

Also, this entire bit of functionality should be a patch and you won't have to worry about conflicts.  

@luxas
This commit is contained in:
Kubernetes Submit Queue 2016-12-03 08:55:59 -08:00 committed by GitHub
commit 00e369b14f
1 changed files with 8 additions and 9 deletions
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17
cmd/kubeadm/app/master/apiclient.go
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@ -178,22 +178,21 @@ func attemptToUpdateMasterRoleLabelsAndTaints(client *clientset.Clientset, sched
n.ObjectMeta.Annotations[v1.TaintsAnnotationKey] = string(taintsAnnotation)
}
for {
if _, err := client.Nodes().Update(n); err != nil {
if apierrs.IsConflict(err) {
fmt.Println("<master/apiclient> temporarily unable to update master node metadata due to conflict (will retry)")
time.Sleep(apiCallRetryInterval)
} else {
return err
}
if _, err := client.Nodes().Update(n); err != nil {
if apierrs.IsConflict(err) {
fmt.Println("<master/apiclient> temporarily unable to update master node metadata due to conflict (will retry)")
time.Sleep(apiCallRetryInterval)
attemptToUpdateMasterRoleLabelsAndTaints(client, schedulable)
} else {
return nil
return err
}
}
return nil
}
func UpdateMasterRoleLabelsAndTaints(client *clientset.Clientset, schedulable bool) error {
// TODO(phase1+) use iterate instead of recursion
err := attemptToUpdateMasterRoleLabelsAndTaints(client, schedulable)
if err != nil {
return fmt.Errorf("<master/apiclient> failed to update master node - %v", err)