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

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524553 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5122. Support failover and retry in WebHdfsFileSystem for NN HA. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524562 13f79535-47bb-0310-9956-ffa450edef68
Move HDFS-5122 from Release 2.1.1-beta to Release 2.3.0 in CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524581 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9929. Insufficient permission for a path reported as file not found.  (Contributed by Colin Patrick McCabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524611 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9791. Add a test case covering long paths for new FileUtil access check methods. Contributed by Ivan Mitic.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524631 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9974: document setting mvn heap size

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524650 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9974: document setting mvn heap size - trailing space

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1524651 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'apache/trunk' into MAPREDUCE-5505
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