HDFS-4992. Make balancer's mover thread count and dispatcher thread count configurable.  Contributed by Max Lapan


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Back out revision 1503499 for MAPREDUCE-5317. Stale files left behind for failed jobs


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HADOOP-9618.  thread which detects GC pauses (Todd Lipcon via Colin Patrick McCabe)

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HADOOP-9683. [RPC v9] Wrap IpcConnectionContext in RPC headers (daryn)


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HDFS-4657.  Limit the number of blocks logged by the NN after a block report to a configurable value.  (Aaron Twinning Meyers via Colin Patrick McCabe)

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YARN-513. Create common proxy client for communicating with RM (Xuan Gong & Jian He via bikas)

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MAPREDUCE-5398. MR changes for YARN-513 (Jian He via bikas)

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YARN-661. Fixed NM to cleanup users' local directories correctly when starting up. Contributed by Omkar Vinit Joshi.


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YARN-820. Fixed an invalid state transition in NodeManager caused by failing resource localization. Contributed by Mayank Bansal.


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HADOOP-9734. Common protobuf definitions for GetUserMappingsProtocol, RefreshAuthorizationPolicyProtocol and RefreshUserMappingsProtocol. Contributed by Jason Lowe


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MAPREDUCE-5380. Invalid mapred command should return non-zero exit code. Contributed by Stephen Chu


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YARN-927. Change ContainerRequest to not have more than 1 container count and remove StoreContainerRequest (bikas)

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HDFS-4998. TestUnderReplicatedBlocks fails intermittently. Contributed by Kihwal Lee.

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HADOOP-9738. TestDistCh fails. Contributed by Jing Zhao.

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YARN-62. Modified NodeManagers to avoid AMs from abusing container tokens for repetitive container launches. Contributed by Omkar Vinit Joshi.


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YARN-912. Move client facing exceptions to yarn-api module. Contributed by Mayank Bansal.


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fix misspelling in CHANGES.txt

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YARN-922. Change FileSystemRMStateStore to use directories (Jian He via bikas)

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YARN-865. RM webservices can't query based on application Types. Contributed by Xuan Gong.

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HDFS-5005. Move SnapshotException and SnapshotAccessControlException to o.a.h.hdfs.protocol. Contributed by Jing Zhao.

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