HADOOP-9294. Merge 1444415 from trunk

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Revering r1444416 because it committed unnecessary changes.

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HADOOP-9294. Merge 1444415 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1444419 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4470. Merging change r1443744 from trunk

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svn merge -c 1445006 from trunk for HDFS-4342. Directories configured in dfs.namenode.edits.dir.required but not in dfs.namenode.edits.dir are silently ignored.


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MAPREDUCE-4994. -jt generic command line option does not work. (sandyr via tucu)

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svn merge -c 1445448 FIXES: MAPREDUCE-4989. JSONify DataTables input data for Attempts page. Contributed by Ravi Prakash


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svn merge -c 1445456 FIXES: MAPREDUCE-4992. AM hangs in RecoveryService when recovering tasks with speculative attempts. Contributed by Robert Parker


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1445457 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9302. HDFS docs not linked from top level (Andy Isaacson via tgraves)

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HADOOP-9303. command manual dfsadmin missing entry for restoreFailedStorage option (Andy Isaacson via tgraves)

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YARN-249. Capacity Scheduler web page should show list of active users per queue like it used to (in 1.x) (Ravi Prakash via tgraves)

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merge MAPREDUCE-5000 from trunk. Fixes getCounters when speculating by fixing the selection of the best attempt for a task. Contributed by Jason Lowe.


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merge YARN-391 from trunk. Formatting fixes for LCEResourceHandler classes. Contributed by Steve Loughran.


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HADOOP-9305. Add support for running the Hadoop client on 64-bit AIX. Contributed by Aaron T. Myers.


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svn merge 1445964:1445965 from trunk to branch-2 to fix HDFS-4495.

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HADOOP-8924. Add maven plugin alternative to shell script to save package-info.java. Contributed by Alejandro Abdelnur and Chris Nauroth.

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HADOOP-9245. mvn clean without running mvn install before fails. Contributed by Karthik Kambatla.

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HADOOP-9246. Execution phase for hadoop-maven-plugin should be process-resources. Contributed by Karthik Kambatla and Chris Nauroth

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HADOOP-9117. replace protoc ant plugin exec with a maven plugin. (tucu)

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HADOOP-9246. Amending CHANGES.txt

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