HADOOP-8753. LocalDirAllocator throws ArithmeticException: divide by zero when there is no available space on configured local dir. Contributed by Benoy Antony.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550570 13f79535-47bb-0310-9956-ffa450edef68
YARN-1311. Fixed app specific scheduler-events' names to be app-attempt based. Contributed by Vinod Kumar Vavilapalli

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550579 13f79535-47bb-0310-9956-ffa450edef68
Reverting YARN-1311. Fixed app specific scheduler-events' names to be app-attempt based. Contributed by Vinod Kumar Vavilapalli

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550594 13f79535-47bb-0310-9956-ffa450edef68
YARN-1311. Fixed app specific scheduler-events' names to be app-attempt based. Contributed by Vinod Kumar Vavilapalli

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550613 13f79535-47bb-0310-9956-ffa450edef68
Updated CHANGES.txt for YARN-1311.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550615 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5652. Refactor invalid block token exception handling in DFSInputStream. (Liang Xie via junping_du)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550620 13f79535-47bb-0310-9956-ffa450edef68