YARN-561. Modified NodeManager to set key information into the environment of every container that it launches. Contributed by Xuan Gong.
MAPREDUCE-5175. Updated MR App to not set envs that will be set by NMs anyways after YARN-561. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471156 13f79535-47bb-0310-9956-ffa450edef68
YARN-581. Added a test to verify that app delegation tokens are restored after RM restart. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471187 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4737. JVM path embedded in fuse binaries. Contributed by Sean Mackrory.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471215 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5069. add concrete common implementations of CombineFileInputFormat (Sangjin Lee via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471424 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4737. Ensure that mapreduce APIs are semantically consistent with mapred API w.r.t Mapper.cleanup and Reducer.cleanup; in the sense that cleanup is now called even if there is an error. The old mapred API already ensures that Mapper.close and Reducer.close are invoked during error handling. Note that it is an incompatible change, however end-users can override Mapper.run and Reducer.run to get the old (inconsistent) behaviour. Contributed by Arun C. Murthy.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471556 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4339. Add the missed entry CHANGES.txt from r1465835

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471595 13f79535-47bb-0310-9956-ffa450edef68
YARN-605. Fix failing unit test in TestNMWebServices when versionInfo has parantheses like when running on a git checkout. Contributed by Hitesh Shah.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1471608 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' into HADOOP-9438
unit tests added for FileAlreadyExistException and check added in FileSystem.java