I d'like to migrate ambari on an other server, that is not part of hadoop.
Right now, ambari is installed on a namenode server.
Is there any guideline for that migration ?
Moving ambari server involves basically following steps:
1). Stop the old ambari host and then install ambari server to new host.
2). Make the "/etc/ambari-agent/conf/ambari-agent.ini" file change on all the agent hosts to point to new ambari server hostname.
3). Run the ambari-server setup command and then point to the Database instance where your amabri DB is present in the "Advance Database configuration Section". (If using postgres then choose option4 Postgres DB , not the Embedded Postgres DB).
OR if you want to move the ambari DB as well to a new host then import the DB dump backup to your new DB host and then during the ambari-server setup command choose new host details.
4). Restart Ambari server and all the ambari agents.
For more information please refer to: https://docs.hortonworks.com/HDPDocuments/Ambari-18.104.22.168/bk_ambari-administration/content/ch_amb_ref...