Cloudera Docs

Starting, Stopping, and Restarting Role Instances

Minimum Required Role: Operator (also provided by Configurator, Cluster Administrator, Limited Cluster Administrator , and Full Administrator)

If the host for the role instance is currently decommissioned, you will not be able to start the role until the host has been recommissioned.
  1. Go to the service that contains the role instances to start, stop, or restart.
  2. Click the Instances tab.
  3. Check the checkboxes next to the role instances to start, stop, or restart (such as a DataNode instance).
  4. Select Actions for Selected > Start, Stop, or Restart, and then click Start, Stop, or Restart again to start the process. When you see a Finished status, the process has finished.