HBASE-7293 [replication] Remove dead sinks from ReplicationSource.currentPeers and pick new ones

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1437240 13f79535-47bb-0310-9956-ffa450edef68
HBASE-6466 Enable multi-thread for memstore flush (Chunhui)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1437252 13f79535-47bb-0310-9956-ffa450edef68