MAPREDUCE-4991. coverage for gridmix (Aleksey Gorshkov via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1463806 13f79535-47bb-0310-9956-ffa450edef68
YARN-467. Modify public distributed cache to localize files such that no local directory hits unix file count limits and thus prevent job failures. Contributed by Omkar Vinit Joshi.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1463823 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5117. Changed MRClientProtocolPBClientImpl to be closeable and thus fix failures in renewal of HistoryServer's delegations tokens. Contributed by Siddharth Seth.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1463828 13f79535-47bb-0310-9956-ffa450edef68
YARN-101. Fix NodeManager heartbeat processing to not lose track of completed containers in case of dropped heartbeats. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1464105 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'apache/trunk' into YARN-193