MAPREDUCE-5713. InputFormat and JobConf JavaDoc Fixes (Chen He via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577239 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5244. TestNNStorageRetentionManager#testPurgeMultipleDirs fails. Contributed bye Jinghui Wang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577254 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5794. SliveMapper always uses default FileSystem. (Contributed by szetszwo)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577281 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5456. TestFetcher.testCopyFromHostExtraBytes is missing (Jason Lowe via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577313 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6080. Improve NFS gateway performance by making rtmax and wtmax configurable. Contributed by Abin Shahab

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577319 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6097. Zero-copy reads are incorrectly disabled on file offsets above 2GB (cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577350 13f79535-47bb-0310-9956-ffa450edef68
YARN-1771. Reduce the number of NameNode operations during localization of
public resources using a cache. Contributed by Sangjin Lee



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577391 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-3679. Fixup assert ordering in unit tests to yield meaningful error
messages. Contributed by Jay Vyas


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577396 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6084. Namenode UI - Hadoop logo link shouldn't go to hadoop homepage. Contributed by Travis Thompson.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577401 13f79535-47bb-0310-9956-ffa450edef68
YARN-1658. Modified web-app framework to let standby RMs redirect web-service calls to the active RM. Contributed by Cindy Li.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577408 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6102. Lower the default maximum items per directory to fix PB fsimage loading. Contributed by Andrew Wang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1577426 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' into hdfs-5846