Cloudera Docs

Prepare for removal

In order to remove the unwanted masters from a multi-master deployment, you need to identify them and note their UUID and RPC addresses.

  1. Establish a maintenance window (one hour should be sufficient). During this time the Kudu cluster will be unavailable.
  2. Identify the UUID and RPC address current leader of the multi-master deployment by visiting the /masters page of any master’s web UI. This master must not be removed during this process; its removal may result in severe data loss.
  3. Stop the unwanted Kudu master processes.