Ambari Properties backup

Prior to upgrading from Ambari 2.6.2.x to Ambari 7.1.x.x, you must make a copy of the Ambari Server configuration file so that you can reapply any configuration changes you have done earlier to the new file.

During the Ambari upgrade, the existing /var/lib/ambari-server/ file is overwritten and a backup copy of (with extension .rpmsave) is created. If you have manually modified (for example, to change Ambari Server heap), you must reapply your changes in the new file.

To purge your Ambari cluster, see Purging Ambari Server Database History.