HBASE-10506 Fail-fast if client connection is lost before the real call be executed in RPC layer

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1567841 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10510 Addendum removes HTable and uses tableName directly.



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1567847 13f79535-47bb-0310-9956-ffa450edef68