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corrections in CHANGES.txt as result of comparing jira and CHANGES records before release of 1.2.0 rc

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svn merge -c 1478524 from branch-1 for HADOOP-9543. TestFsShellReturnCode may fail if the hardcoded user "admin" is not a valid user in the loacl OS.


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svn merge -c 1478517 from branch-1 for HDFS-4774. Backport HDFS-4525: Provide an API for knowing whether a file is closed.


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Merge -c 1477900 from branch-1 to branch-1.2 to fix MAPREDUCE-5154. Ensure job delegation token renewal is cancelled after job staging directory is deleted. Contributed by Sandy Ryza & Arun C. Murthy.

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Merge -c 1477897 from branch-1 to branch-1.2 to fix MAPREDUCE-5198. Fix a race condition during TaskTracker re-init which was causing failures since task directories were being cleaned up in multiple threads. Contributed by Arpit Gupta.

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Merge -c 1476463 from branch-1 to branch-1.2 to fix MAPREDUCE-5158. Cleanup job-submission related files on HDFS during JobTracker restart for jobs which set mapreduce.job.restart.recover to false to indicate they don't want to be recovered. Contributed by Mayank Bansal.

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svn merge -c 1471747 from branch-1 for HADOOP-9502. chmod/chown do not return error exit codes for some exceptions.


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Merge -c 1471644 from branch-1 to branch-1.2 to fix HADOOP-9458. Fix RPC.getProxy to ensure it uses retries for getProtocolVersion too. Contributed by Tsz Wo Sze.

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Merge -c 1471635 from branch-1 to branch-1.2 to fix MAPREDUCE-5166. Fix ConcurrentModificationException due to insufficient synchronization on updates to task Counters. Contributed by Sandy Ryza.

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Merge -c 1471563 from branch-1 to branch-1.2 to fix MAPREDUCE-5169. Fixed JobTracker recovery to ensure both job-info and jobToken file are saved correctly to prevent race-condition between job submission and initialization. Contributed by Arun C. Murthy

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Merge -c 1471559 from branch-1 to branch-1.2 to fix 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.

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svn merge -c 1470660 from branch-1 for HDFS-4715. Backport HDFS-3577, HDFS-3318 and HDFS-3788: fix some WebHDFS performance issues.


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Merge -c 1470218 from branch-1 to branch-1.2 to fix MAPREDUCE-5066. Added a timeout for the job.end.notification.url. Contributed by Ivan Mitic.

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Merge -c 1465173 from branch-1 to branch-1.2 to fix MAPREDUCE-5129. Allow tags to JobHistory for deeper analytics. Contributed by Billie Rinaldi.

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Merge -c 1465171 from branch-1 to branch-1.2 to fix MAPREDUCE-5131. Fix handling of job monitoring APIs during JobTracker restart. Contributed by Arun C. Murthy.

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Merge -c 1464947 from branch-1 to branch-1.2 to fix MAPREDUCE-4824. Provide a mechanism for jobs to indicate they should not be recovered on JobTracker restart. Contributed by Tom White and Arun C. Murthy.

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Merge -c 1464514 from branch-1 to branch-1.2 to fix MAPREDUCE-4463. Fix job recovery failures which were caused by HDFS permission issues since the token file was being read as the user who submitted the job rather than JobTracker user. Contributed by Tom White & Arun C Murthy.

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