HDFS-5425. Merge change r1541261 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1541271 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10093. Merging change r1541343 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1541344 13f79535-47bb-0310-9956-ffa450edef68
YARN-1386. NodeManager mistakenly loses resources and relocalizes them (Jason Lowe via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1541376 13f79535-47bb-0310-9956-ffa450edef68