Apache Ambari Operations
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Performing Service Actions

Manage a selected service on your cluster by performing service actions. In the Services tab, click Service Actions and click an option. Available options depend on the service you have selected; for example, HDFS service action options include:

Clicking Turn On Maintenance Mode suppresses alerts and status indicator changes generated by the service, while allowing you to start, stop, restart, move, or perform maintenance tasks on the service.

More Information

Setting Maintenance Mode

Enable Service Auto-Start