HDFS-4677. Editlog should support synchronous writes. Contributed by Ivan Mitic.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491096 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Setting release date for 2.0.5-alpha release

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HADOOP-9581. hadoop --config non-existent directory should result in error. Contributed by Ashwin Shankar


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491548 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5308. Shuffling to memory can get out-of-sync when fetching multiple compressed map outputs. Contributed by Nathan Roberts


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491611 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4752. TestRBWBlockInvalidation fails on Windows due to file locking. Contributed by Chris Nauroth.

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HADOOP-9604. Javadoc of FSDataOutputStream is slightly inaccurate. Contributed by Jingguo Yao.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491668 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4878. On Remove Block, block is not removed from neededReplications queue. Contributed by Tao Luo.

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HADOOP-9630. [RPC v9] Remove IpcSerializationType. (Junping Du via llu)

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YARN-737. Throw some specific exceptions directly instead of wrapping them in YarnException. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491896 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9625. HADOOP_OPTS not picked up by hadoop command. Contributed by Paul Han

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491907 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5315.  DistCp reports success even on failure. (mithun and jlowe via daryn)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491914 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5315.  DistCp reports success even on failure. (mithun and jlowe via daryn)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1491917 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9635. Fix potential stack overflow in DomainSocket.c (V. Karthik Kumar via cmccabe)



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HDFS-4873. callGetBlockLocations returns incorrect number of blocks for snapshotted files. Contributed by Jing Zhao.

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