Version: release-0.8

Restart a Pulsar cluster

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

note

Restarting a Kafka cluster triggers a concurrent restart and the leader may change after the cluster restarts.

Steps

Restart a cluster.

You can use kbcli or create an OpsRequest to restart a cluster.

Option 1. (Recommended) Use kbcli

Configure the values of components and ttlSecondsAfterSucceed and run the command below to restart a specified cluster.

kbcli cluster restart NAME --components="pulsar" \
--ttlSecondsAfterSucceed=30

components describes the component name that needs to be restarted.
ttlSecondsAfterSucceed describes the time to live of an OpsRequest job after the restarting succeeds.

Option 2. Create an OpsRequest

Run the command below to apply the restarting to a cluster.

kubectl apply -f - <<EOF
apiVersion: apps.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: ops-restart
spec:
  clusterRef: pulsar
  type: Restart 
  restart:
  - componentName: pulsar
EOF

Validate the restarting.

Run the command below to check the cluster status to check the restarting status.

kbcli cluster list <name>

Example

kbcli cluster list kafka
>
NAME    CLUSTER-DEFINITION   VERSION       TERMINATION-POLICY   STATUS     AGE
pulsar      pulsar                                pulsar-2.11    Delete                               Running    19m

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

Steps​

Steps