HADOOP-8981. Merge r1440780 from trunk

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HDFS-4428. FsDatasetImpl should disclose what the error is when a rename fails. Contributed by Colin Patrick McCabe.


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MAPREDUCE-4969. Merge change 1441069 from trunk

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HDFS-4451. Merge change 1441113 and 1441123 from trunk

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svn merge -c 1441239 FIXES: YARN-364. AggregatedLogDeletionService can take too long to delete logs. Contributed by Jason Lowe


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Merge -r 1441474:1441475 from trunk to branch-2. Fixes: HADOOP-9124. SortedMapWritable violates contract of Map interface for equals() and hashCode(). Contributed by Surenkumar Nihalani

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HDFS-4456. Add concat to HttpFS and WebHDFS REST API docs. (plamenj2003 via tucu)

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svn merge -c 1441628 FIXES: HADOOP-9067. provide test for LocalFileSystem.reportChecksumFailure (Ivan A. Veselovsky via bobby)


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merge -c 1441668 from trunk to branch-2 to fix YARN-372. Move InlineDispatcher from hadoop-yarn-server-resourcemanager to hadoop-yarn-common. Contributed by Siddharth Seth.

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merge MAPREDUCE-4971 from trunk. Minor extensibility enhancements to Counters & FileOutputFormat. Contributed by Arun C Murthy


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HDFS-4452. getAdditionalBlock() can create multiple blocks if the client times out and retries. Contributed by Konstantin Shvachko.

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