HADOOP-10106. Merge change r1551369 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1551379 13f79535-47bb-0310-9956-ffa450edef68
YARN-312. Introduced ResourceManagerAdministrationProtocol changes to support changing resources on node. Contributed by Junping Du.
svn merge --ignore-ancestry -c 1551403 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1551404 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5350. Name Node should report fsimage transfer time as a metric. Contributed by Jimmy Xiang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1551427 13f79535-47bb-0310-9956-ffa450edef68
YARN-1451. TestResourceManager relies on the scheduler assigning multiple containers in a single node update. (Sandy Ryza via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1551441 13f79535-47bb-0310-9956-ffa450edef68
YARN-1446. Changed client API to retry killing application till RM acknowledges so as to account for RM crashes/failover. Contributed by Jian He.
svn merge --ignore-ancestry -c 1551444 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1551445 13f79535-47bb-0310-9956-ffa450edef68