Most of the regions were added into AssignmentManager#servers twice
Review Request #782 - Created May 24, 2011 and updated
When master fails over, we should check whether hris contains the region addToServers() is trying to add. But ArrayList is not the best data structure to perform search of specific HRegionInfo. Maybe we should consider replacing it with e.g. ConcurrentSkipListSet Also removes bulkAssignUserRegions() which is no longer called.
Ran test suite.