Destroy TiDB Clusters on Kubernetes

This document describes how to destroy TiDB clusters on Kubernetes.

Destroy a TiDB cluster managed byTidbCluster

To destroy a TiDB cluster managed byTidbCluster, run the following command:

              

               kubectl delete tc${cluster_name}-n${namespace}
              

               
               

If you deploy the monitor in the cluster usingTidbMonitor, run the following command to delete the monitor component:

              

               kubectl delete tidbmonitor${tidb_monitor_name}-n${namespace}
              

               
               

Destroy a TiDB cluster managed by Helm

To destroy a TiDB cluster managed by Helm, run the following command:

              

               helm uninstall${cluster_name}-n${namespace}
              

               
               

Delete data

The above commands that destroy the cluster only remove the running Pod, but the data is still retained. If you want to delete the data as well, use the following commands:

              

               kubectl delete pvc -n${namespace}-l app.kubernetes.io/instance=${cluster_name},app.kubernetes.io/managed-by=tidb-operator

               
               

              

               kubectl get pv -l app.kubernetes.io/namespace=${namespace},app.kubernetes.io/managed-by=tidb-operator,app.kubernetes.io/instance=${cluster_name}-o name | xargs -I {} kubectl patch {} -p'{"spec":{"persistentVolumeReclaimPolicy":"Delete"}}'