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/ambari-env.sh file is overwritten and a backup copy of ambari-env.sh (with extension .rpmsave) is created. If you have manually modified ambari-env.sh (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.