When a node leaves a cluster, the node is no longer visible to the other nodes in the cluster. You might want a node to leave the cluster to perform maintenance on the server, or to upgrade the server during a rolling cluster upgrade.
The cluster leave command allows you to remove a node from a cluster so that the node is not visible to other servers in the cluster.
Log in as the root user on the node in the cluster that you want to remove, then enter the following at a command prompt:
After the node has successfully left the cluster, the following message is displayed:
No longer a member of cluster cluster_name
The cluster down command removes all cluster nodes from the cluster. This command has the same effect as executing the cluster leave command on every server in the cluster. You are prompted to confirm the cluster down.
Log in as the root user on any node in the cluster, then enter the following at a command prompt:
When you are prompted to confirm the cluster down command, specify , then press Enter.