Cloudera Docs

Backup Ambari

You must back up the current Ambari database. It creates a copy of the current Ambari database and meta information.

  1. On the Ambari Server host, stop the original Ambari Server. 
    ambari-server stop
  2. Stop Ambari Agent. 
    Stop  Ambari Agent on all host
ambari-agent stop
  3. Create a directory to hold the database backups. 
    cd /tmp
mkdir dbdumps/
cd dbdumps/
  4. Create the database backups.

    POSTGRES

    pg_dump [AMBARI_DB_USERNAME] -U [AMBARI_DB_USERNAME] -f pre_upgrade.sql
Password: [AMBARI_DB_PASSWORD]
    MYSQL
    mysqldump [AMBARI_DB_NAME] -u [AMBARI_DB_USERNAME] > pre_upgrade.sql
    Variable Description Default
    [AMBARI_DB_NAME] The database name. ambari

    [AMBARI_DB_USERNAME]

    The database username.

    ambari

    [AMBARI_DB_PASSWORD]

    The database password.

    bigdata
  5. Create a backup of the Ambari properties. 
    /etc/ambari-server/conf/ambari.properties
/etc/ambari-agent/conf/ambari-agent.ini