Managing and Monitoring a Cluster
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Restart components

Use Restart options to start service components using new configuration properties.

Edit and save configurations for one or more services.
After editing and saving configuration changes, a Restart indicator appears next to components that require restarting. You must restart components affected by a configuration change so that the component uses the updated configuration values.
  1. Click the indicated Components or Hosts links to view details about the requested restart.
  2. Click Restart and then click the appropriate action.
    For example, options to restart YARN components include the following: