svn merge -c 1337430 from branch-2 for HADOOP-8366 Use ProtoBuf for RpcResponseHeader


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.0.0-alpha@1338348 13f79535-47bb-0310-9956-ffa450edef68
5 files changed