HBASE-7800 RegionMovedException can cause servers to play ping pong with client (Sergey)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1448767 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7725: Add ability to create custom compaction request - ADDENDUM: fix javadocs

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1448778 13f79535-47bb-0310-9956-ffa450edef68
HBASE-6493. HashSet of byte array is being used in couple of places (Nick Dimiduk)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1448780 13f79535-47bb-0310-9956-ffa450edef68