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Version: release-0.9

Restart an ApeCloud MySQL cluster

You can restart all pods of the cluster. When an exception occurs in a database, you can try to restart it.

Steps​

  1. Create an OpsRequest to restart a cluster.

    kubectl apply -f - <<EOF
    apiVersion: apps.kubeblocks.io/v1alpha1
    kind: OpsRequest
    metadata:
      name: ops-restart
      namespace: demo
    spec:
      clusterName: mycluster
      type: Restart 
      restart:
      - componentName: mysql
    EOF

  2. Check the pod and operation status to validate the restarting.

    kubectl get pod -n demo
    >
    NAME                READY   STATUS        RESTARTS   AGE
    mycluster-mysql-0   4/4     Running       0          5m32s
    mycluster-mysql-1   4/4     Running       0          6m36s
    mycluster-mysql-2   3/4     Terminating   0          7m37s

    kubectl get ops ops-restart -n demo
    >
    NAME          TYPE      CLUSTER     STATUS    PROGRESS   AGE
    ops-restart   Restart   mycluster   Succeed   1/1        3m26s

    During the restarting process, there are two status types for pods.

    • STATUS=Terminating: it means the cluster restart is in progress.
    • STATUS=Running: it means the cluster has been restarted.

    If an error occurs, you can troubleshoot with kubectl describe command to view the events of this operation.