HADOOP-10135 writes to swift fs over partition size leave temp files and empty output file

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1546959 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5581. NameNodeFsck should use only one instance of BlockPlacementPolicy (vinay via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1547088 13f79535-47bb-0310-9956-ffa450edef68
move HDFS-5581 to 2.3

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1547094 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk