HDFS-4592. Default values for access time precision are out of sync between hdfs-default.xml and the code. Contributed by Aaron T. Myers.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455777 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4522. LightWeightGSet expects incrementing a volatile to be atomic. Contributed by Colin Patrick McCabe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455780 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4484. libwebhdfs compilation broken with gcc 4.6.2. Contributed by Colin Patrick McCabe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455782 13f79535-47bb-0310-9956-ffa450edef68
YARN-198. Added a link to RM pages from the NodeManager web app. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455800 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-xxx-hadoop-auth-kerberos-realm-trunk-gd