HDFS-3934. duplicative dfs_hosts entries handled wrong. (cmccabe)



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1489065 13f79535-47bb-0310-9956-ffa450edef68
Add needed file for HDFS-3934 (cmccabe)



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1489068 13f79535-47bb-0310-9956-ffa450edef68
YARN-326. Add multi-resource scheduling to the fair scheduler. (sandyr via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1489070 13f79535-47bb-0310-9956-ffa450edef68
Remove extra code that code erroneously committed in HDFS-3934 (cmccabe)



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1489083 13f79535-47bb-0310-9956-ffa450edef68
YARN-398. Make it possible to specify hard locality constraints in resource requests for CapacityScheduler. Contributed by Arun C. Murthy.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1489087 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9614. smart-test-patch.sh hangs for new version of patch (2.7.1) (Ravi Prakash via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1489136 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd