Restarting Services and Instances after Configuration Changes

If you change the configuration properties after you start a service or instance, you may need to restart the service or instance to have the configuration properties become active.

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f you change configuration properties at the service level that affect a particular role only (such as all DataNodes but not the NameNodes), you can restart only that role; you do not need to restart the entire service. If you changed the configuration for a particular role instance (such as one of four DataNodes), you may need to restart only that instance.

  1. Follow the instructions in the topics Restarting a Service or Starting, Stopping, and Restarting Role Instances.
  2. If you see a Finished status, the service or role instances have restarted.
  3. Go to the Home > Status tab.
The service should show a Status of Started for all instances and a health status of Good.