Run the following command on the Ambari Server host:
ambari-server startTo check the Ambari Server processes:
ambari-server statusTo stop the Ambari Server:
ambari-server stop
![[Note]](../common/images/admon/note.png) | Note |
|---|---|
If you plan to use an existing database instance for Hive or for Oozie, you must complete the preparations described in Using Non-Default Databases-Hive and Using Non-Default Databases-Oozie before installing your Hadoop cluster. |
Next Steps
