Back up current Ambari database

Creates a copy of the current Ambari database and meta info.

1. On the Ambari Server host, stop the original Ambari Server.
   ambari-server stop
2. Create a directory to hold the database backups.

   cd /tmp
   mkdir dbdumps/
   cd dbdumps/

3. Create the database backups.

   pg_dump -U [AMBARI_DB_USERNAME] -f ambari.sql
   Password: [AMBARI_DB_PASSWORD]

   where:

   Table 1. Database Dump Script Variables, Values, and Descriptions

   Variable	Description	Default
   [AMBARI_DB_USERNAME]	The database username.	ambari
   [AMBARI_DB_PASSWORD]	The database password.	bigdata

4. Create a backup of the Ambari Server meta info.
   ambari-server backup