MAPREDUCE-5380. Invalid mapred command should return non-zero exit code. Contributed by Stephen Chu


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1503957 13f79535-47bb-0310-9956-ffa450edef68
YARN-927. Change ContainerRequest to not have more than 1 container count and remove StoreContainerRequest (bikas)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1503960 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4998. TestUnderReplicatedBlocks fails intermittently. Contributed by Kihwal Lee.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1503971 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9738. TestDistCh fails. Contributed by Jing Zhao.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1503976 13f79535-47bb-0310-9956-ffa450edef68
YARN-62. Modified NodeManagers to avoid AMs from abusing container tokens for repetitive container launches. Contributed by Omkar Vinit Joshi.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1503986 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-YAHOO-226-trunk-gd