HADOOP-10466. Lower the log level in UserGroupInformation.  Contributed by Nicolas Liochon


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585538 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6191. Disable quota checks when replaying edit log.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585544 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6181. Fix the wrong property names in NFS user guide. Contributed by Brandon Li

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585563 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6197. Rolling upgrade rollback on Windows can fail attempting to rename edit log segment files to a destination that already exists. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585586 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6180. Dead node count / listing is very broken in JMX and old GUI. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585625 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6198. DataNode rolling upgrade does not correctly identify current block pool directory and replace with trash on Windows. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585627 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6143. WebHdfsFileSystem open should throw FileNotFoundException for non-existing paths. Contributed by Gera Shegalov.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1585639 13f79535-47bb-0310-9956-ffa450edef68