svn merge -c 1452435 FIXES: HDFS-4532. RPC call queue may fill due to current user lookup (daryn)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1452438 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1452372 FIXES: MAPREDUCE-5043. Fetch failure processing can cause AM event queue to backup and eventually OOM (Jason Lowe via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1452451 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4541. Merge 1452461 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1452463 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1452475 FIXES: YARN-448. Remove unnecessary hflush from log aggregation (Kihwal Lee via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1452477 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1452548 FIXES: YARN-345. Many InvalidStateTransitonException errors for ApplicationImpl in Node Manager. Contributed by Robert Parker


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1452549 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9337. org.apache.hadoop.fs.DF.getMount() does not work on Mac OS. Contributed by Ivan A. Veselovsky.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1452624 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/branch-2' into branch-2-gd