Version: release-0.8

Restart a Redis 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 Redis 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 redis-cluster --components="redis" \
--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 restart a cluster.
```
kubectl apply -f - <<EOF
apiVersion: apps.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: ops-restart
spec:
  clusterRef: redis-cluster
  type: Restart 
  restart:
  - componentName: redis
EOF
```

Validate the restart operation.

Check the cluster status to identify the restart status.

kbcli cluster list <name>

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

Example

kbcli cluster list redis-cluster
>
NAME                 NAMESPACE        CLUSTER-DEFINITION        VERSION            TERMINATION-POLICY        STATUS         CREATED-TIME
redis-cluster        default          redis                     redis-7.0.x        Delete                    Running        Apr 10,2023 19:20 UTC+0800

Restart a Redis cluster

Steps​

Steps