HDFS-3245. Add metrics and web UI for cluster version summary. Contributed by Ravi Prakash.

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HDFS-5128. Allow multiple net interfaces to be used with HA namenode RPC server. Contributed by Kihwal Lee.

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HDFS-5132. Deadlock in NameNode between SafeModeMonitor#run and DatanodeManager#handleHeartbeat. Contributed by Kihwal Lee.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1517989 13f79535-47bb-0310-9956-ffa450edef68
Adding the new test file for HDFS-3245 that was accidentally dropped

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YARN-981. Fixed YARN webapp so that /logs servlet works like before. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518030 13f79535-47bb-0310-9956-ffa450edef68
YARN-1083. Changed ResourceManager to fail when the expiry interval is less than the configured node-heartbeat interval. Contributed by Zhijie Shen.


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YARN-602. Fixed NodeManager to not let users override some mandatory environmental variables. Contributed by Kenji Kikushima.


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YARN-1081. Made a trivial change to YARN node CLI header to avoid potential confusion. Contributed by Akira AJISAKA.


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HDFS-5078 Support file append in NFSv3 gateway to enable data streaming to HDFS. Contributed by Brandon Li

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HADOOP-9910. proxy server start and stop documentation wrong. Contributed by Andre Kelpe. (harsh)

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Addendum to HADOOP-9910 for trunk. Removed bad characters from CHANGES.txt note that was causing odd issues.

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HADOOP-9906. Move HAZKUtil to o.a.h.util.ZKUtil and make inner-classes public (Karthik Kambatla via Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518303 13f79535-47bb-0310-9956-ffa450edef68
Adding and removing files missed for HADOOP-9906

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YARN-1101. Active nodes can be decremented below 0 (Robert Parker via tgraves_

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