@Allen Niu Unfortunately currently there is no HA feature available for Ambari yet. However you can refer to the following JIRAs where the discussion is going on in this regard: https://issues.apache.org/jira/browse/AMBARI-17126 AND https://issues.apache.org/jira/browse/AMBARI-7896 - Following link also has some good information regarding the same: https://community.hortonworks.com/questions/402/how-to-setup-high-availability-for-ambari-server.html ... View more

This question can be ignored. After further reading, i understood this is expected. Ambari keeps the configuration somewhere else (most likely in its own repository and then extract and refresh the .xml during start up. Sound makes sense for the usage of repository). ... View more