Retiring Cluster Member
Note:
Oracle recommends that you perform this task during a planned downtime, such as a maintenance period to avoid system disruption.- Log into the SDM GUI on a node belonging to the running cluster.
- Select Tools > Health Monitor.
- In the Health Monitor Console pane, view the Heartbeat Summary table to know which node is cluster member node that is running the master databases.
- Log into the node to be removed from the cluster as the nncentral user.
-
Change directory to the bin directory.
For example:
cd /home/nncentral/AcmePacket/NNC8x/bin
-
Execute the
shutdownnnc.sh script.
./shutdownnnc.sh
-
Uninstall
SDM.
./uninstall.sh
-
Shut down all remaining nodes starting with the replicas, followed by the master cluster member node.
./shutdownnnc.sh
-
Switch to the root user on the master cluster member node and enter the root user password when you are prompted.
su root
-
From the bin directory on the master cluster member node, execute the
setup.sh script.
./setup.sh
- Enter 2 for the Custom option and press Enter.
- Enter Yes to continue.
- Enter 6 for the Cluster management option and press Enter.
- Enter Yes to continue.
- Option 1 Configure and manage members in a cluster is selected by default. Press Enter.
- Enter Yes to continue.
- Enter 2 for the Remove all remote members option that removes all remote cluster member nodes from the cluster configuration and press Enter.
- Enter Yes to continue.
- Enter 1 for the Proceed with removing all remote members option and press Enter.
- Enter Yes to continue.
- Enter 3 for the Apply new cluster configuration option and press Enter.
- Enter Yes to continue.
- Enter 3 for the Quit out of cluster configuration option and press Enter.
-
Switch to the nncentral user on the master cluster member node.
su nncentral
-
Execute the
startnnc.sh script on the master cluster member node.
./startnnc.sh
- Execute the startnnc.sh script on each remaining replica node in the cluster.