AMBARI-7327. After NameNode HA is enabled UI doesn't load (aonishuk)
AMBARI-7225 deploy of 2.1.GlusterFS stack errors with:  org.apache.ambari.server.controller.spi.SystemException: An internal system exception occurred: Configuration with tag 'version1' exists for 'core-site'
(Scott Creeley via eboyd)