YARN-1183. MiniYARNCluster shutdown takes several minutes intermittently (Andrey Klochkov via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1534800 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5561. org.apache.hadoop.mapreduce.v2.app.job.impl.TestJobImpl testcase failing on trunk. Contributed by Karthik Kambatla


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1534832 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-xxx-hadoop-auth-kerberos-realm-trunk-gd