Skip to main content
Version: release-0.8

Stop/Start a MySQL cluster

You can stop/start a cluster to save computing resources. When a cluster is stopped, the computing resources of this cluster are released, which means the pods of Kubernetes are released, but the storage resources are reserved. You can start this cluster again by snapshots if you want to restore the cluster resources.

Stop a cluster​

Configure the name of your cluster and run the command below to stop this cluster.

kbcli cluster stop mysql-cluster

Option 2. Create an OpsRequest​

Run the command below to stop a cluster.

kubectl apply -f - <<EOF
apiVersion: apps.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: mysql-cluster
  generateName: stop-
spec:
  # cluster ref
  clusterRef: mysql-cluster
  type: Stop
EOF

Option 3. Change the YAML file of the cluster​

Configure replicas as 0 to delete pods.

apiVersion: apps.kubeblocks.io/v1alpha1
kind: Cluster
metadata:
    name: mysql-cluster
spec:
  clusterDefinitionRef: apecloud-mysql
  clusterVersionRef: ac-mysql-8.0.30
  terminationPolicy: WipeOut
  componentSpecs:
  - name: mysql
    componentDefRef: mysql
    monitor: false  
    replicas: 0
    volumeClaimTemplates:
    - name: data
      spec:
        storageClassName: standard
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 1Gi

Start a cluster​

Configure the name of your cluster and run the command below to start this cluster.

kbcli cluster start mysql-cluster

Option 2. Create an OpsRequest​

Run the command below to start a cluster.

kubectl apply -f - <<EOF
apiVersion: apps.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: mysql-cluster
  generateName: start-
spec:
  # cluster ref
  clusterRef: mysql-cluster
  type: Start
EOF

Option 3. Change the YAML file of the cluster​

Change replicas back to the original amount to start this cluster again.

apiVersion: apps.kubeblocks.io/v1alpha1
kind: Cluster
metadata:
    name: mysql-cluster
spec:
  clusterDefinitionRef: apecloud-mysql
  clusterVersionRef: ac-mysql-8.0.30
  terminationPolicy: WipeOut
  componentSpecs:
  - name: mysql
    componentDefRef: mysql
    monitor: false  
    replicas: 3
    volumeClaimTemplates:
    - name: data
      spec:
        storageClassName: standard
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 1Gi