HDFS-4586. TestDataDirs.testGetDataDirsFromURIs fails with all directories in dfs.datanode.data.dir are invalid. Contributed by Ivan Mitic.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455708 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5060. Fetch failures that time out only count against the first map task. Contributed by Robert Joseph Evans


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455740 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-HDFS-4312-trunk-gd