YARN-1001. Added a web-service to get statistics about per application-type per state for consumption by downstream projects. Contributed by Zhijie Shen.


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YARN-1184. ClassCastException during preemption enforcement.



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HDFS-5207. In BlockPlacementPolicy.chooseTarget(..), change the writer and the excludedNodes parameter types respectively to Node and Set.  Contributed by Junping Du


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HADOOP-9944. Fix RpcRequestHeaderProto.callId to be sint32 rather than uint32 since ipc.Client.CONNECTION_CONTEXT_CALL_ID is signed (i.e. -3). Contributed by Arun C. Murthy.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1523885 13f79535-47bb-0310-9956-ffa450edef68
Preparing for hadoop-2.1.1-beta release.

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HADOOP-9350. Moving to appropriate section in CHANGES.txt

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Added ASL2 header to releasenotes.html.

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HADOOP-9669 Reduce the number of byte array creations and copies in XDR data manipulation. Contributed by Haohui Mai

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HDFS-5212. Refactor RpcMessage and NFS3Response to support different types of authentication information. Contributed by Jing Zhao.

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MAPREDUCE-5487. In task processes, JobConf is unnecessarily loaded again in Limits (Sandy Ryza)

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HDFS-5219. Add configuration keys for retry policy in WebHDFSFileSystem. Contributed by Haohui Mai.

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HDFS-5031. BlockScanner scans the block multiple times. (Vinay via Arpit Agarwal)

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HDFS-5122. Support failover and retry in WebHdfsFileSystem for NN HA. Contributed by Haohui Mai.

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Move HDFS-5122 from Release 2.1.1-beta to Release 2.3.0 in CHANGES.txt

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HADOOP-9929. Insufficient permission for a path reported as file not found.  (Contributed by Colin Patrick McCabe)

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HADOOP-9791. Add a test case covering long paths for new FileUtil access check methods. Contributed by Ivan Mitic.

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HADOOP-9974: document setting mvn heap size

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HADOOP-9974: document setting mvn heap size - trailing space

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YARN-353. Add Zookeeper-based store implementation for RMStateStore. Contributed by Bikas Saha, Jian He and Karthik Kambatla.

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MAPREDUCE-5504. mapred queue -info inconsistent with types (Kousuke Saruta via tgraves)

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