Removing a machine from a cluster

You can remove machines from a cluster to alter the availability of the Developer Portal.

Procedure

  1. Quiesce the queue processors and stop the database on this node by entering the following command: 
    queue_run -q
sudo service mysql stop
  2. When the preceding command has completed, enter the following command for all other cluster members to remove this machine from the cluster: 
    set_cluster_members node_A node_C
    Where node_B is the node that has been removed.
  3. Power off the node that has been removed from the cluster.