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Update podManagementPolicy of StatefulSet object (#13210) 

In given manifest, podManagementPolicy is set as Parallel, but in later section of page, the console logs of "kubectl get pods -w -l app=zk" command displays ordered behavior, which is not the actual result in case of Parallel option.

Sample logs from doc : 
NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

## here pods are created in order

Actual results after applying the given manifest : 
[taher@kubernetes-docker ~]$ kubectl apply -f zookeeper.yaml
service/zk-hs created
service/zk-cs created
poddisruptionbudget.policy/zk-pdb created
statefulset.apps/zk created
[taher@kubernetes-docker ~]$ kubectl get pods -w -l app=zk
NAME   READY   STATUS              RESTARTS   AGE
zk-0   0/1     Pending             0          3s
zk-1   0/1     Pending             0          3s
zk-2   0/1     ContainerCreating   0          3s
zk-1   0/1   Pending   0     4s
zk-0   0/1   Pending   0     4s
zk-1   0/1   Pending   0     5s
zk-0   0/1   Pending   0     5s
zk-1   0/1   Pending   0     5s
zk-1   0/1   ContainerCreating   0     5s
zk-0   0/1   Pending   0     5s
zk-2   0/1   Running   0     19s
zk-1   0/1   Running   0     24s
zk-2   1/1   Running   0     35s
zk-1   1/1   Running   0     37s

## here pods are created in parallel

Resolution :
Either change the value of podManagementPolicy option to OrderedReady or remove that option, so that StatefulSet will take it's default behavior.
This commit is contained in:
Taher Bohari 2019-04-10 11:02:12 +05:30 committed by Kubernetes Prow Robot
parent 26851b86a6
commit 000aa4520e
1 changed files with 1 additions and 1 deletions
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2
content/en/examples/application/zookeeper/zookeeper.yaml
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@ -49,7 +49,7 @@ spec:
replicas: 3 replicas: 3
updateStrategy: updateStrategy:
type: RollingUpdate type: RollingUpdate
podManagementPolicy: Parallel podManagementPolicy: OrderedReady
template: template:
metadata: metadata:
labels: labels: