MAPREDUCE-5868. Fixed an issue with TestPipeApplication that was causing the nightly builds to fail. Contributed by Akira Ajisaka.
svn merge --ignore-ancestry -c 1608579 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.5@1608581 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5517. Fixed MapReduce ApplicationMaster to not validate reduce side resource configuration for deciding uber-mode on map-only jobs. Contributed by Siqi Li.
svn merge --ignore-ancestry -c 1608595 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.5@1608598 13f79535-47bb-0310-9956-ffa450edef68