It is possible to remove a node LoadMaster from the cluster which will mark the node as unavailable for new traffic (that is, a Draining state) to facilitate the removal from the cluster. To do this, follow the steps below in the shared IP address WUI:

  1. In the main menu, go to System Configuration > Cluster Control.

  2. Click Disable on the node to be removed.
    Note: Before a node can be deleted, it must first be disabled. A node cannot be deleted if it is handling traffic.
  3. The node will change to a Draining state. Wait for the node to finish draining and change to a Disabled state.
    Note: The page will need to be refreshed to see the new state.
    Note: When a node is in the Draining state, the connections that are still being served by the node are allowed to continue for the amount of time specified in the Node Drain Time text box. For more information, refer to the Cluster Parameters section. No new connections are handled by the node during this time.
  4. Click Delete to remove the node from the cluster.
  5. Click OK to confirm the removal.
  6. Click OK to the confirmation message.

When a node is deleted it becomes a regular single LoadMaster instance. If the LoadMaster is later added back in to the cluster, any configuration changes that have been made in the shared IP address will propagate to the node LoadMaster.