git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1309533 13f79535-47bb-0310-9956-ffa450edef68
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-1623@1241183 13f79535-47bb-0310-9956-ffa450edef68