Can someone share detailed information showing what is the best practice for performing a major OS upgrade (RHEL6->RHEL7) on a Kerberized HDP cluster, (Ambari version = 220.127.116.11, HDP version = 2.5.3)? The system team will not be doing an in-place upgrade and it sounds like the hosts will be wiped or moved to different hardware. The HDP components requiring databases such as Ambari, HIVE, Oozie, etc. are leveraging mysql not the default postgres database.
Thanks a million!