RHEL 6 Cluster Admin - 4.3. Starting, Stopping, Restarting, and Deleting Clusters

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4.3. Starting, Stopping, Restarting, and Deleting Clusters

You can start, stop, and restart a cluster by performing these actions on the individual nodes in the cluster. From the cluster-specific page, click on Nodes along the top of the cluster display. This displays the nodes that constitute the cluster.

To stop a cluster, perform the following steps. This shuts down the cluster software in the nodes, but does not remove the cluster configuration information from the nodes and the nodes still appear in the cluster node display with a status of Not a cluster member.

Select all of the nodes in the cluster by clicking on the checkbox next to each node.
Select the Leave Cluster function from the menu at the top of the page. This causes a message to appear at the top of the page indicating that each node is being stopped.
Refresh the page to see the updated status of the nodes.

To start a cluster, perform the following steps:

Select all of the nodes in the cluster by clicking on the checkbox next to each node.
Select the Join Cluster function from the menu at the top of the page.
Refresh the page to see the updated status of the nodes.

To restart a running cluster, first stop all of the nodes in cluster, then start all of the nodes in the cluster, as described above.

To delete a cluster entirely from the luci interface, perform the following steps:

Select all of the nodes in the cluster by clicking on the checkbox next to each node.
Select the Delete function from the menu at the top of the page. This removes the cluster configuration information from the nodes and removes them from the cluster display.
Click on Manage Clusters on the left side of the screen to display the existing clusters.
Select the cluster to delete and click Delete.