install multihost cluster. on one of the hosts install only HBase RegionServer. Then try to delete the host. after that Ambari ui doesn't work.
Deletion of last host-component should be enabled with the warning.
|Transition||Time In Source Status||Execution Times||Last Executer||Last Execution Date|
|2m 12s||1||Andrii Babiichuk||25/Oct/13 19:39|
|2d 17h 43m||1||Andrii Babiichuk||28/Oct/13 12:23|
|Status||Patch Available [ 10002 ]||Resolved [ 5 ]|
|Resolution||Fixed [ 1 ]|
|Status||Open [ 1 ]||Patch Available [ 10002 ]|