HADOOP-10610. Upgrade S3n s3.fs.buffer.dir to support multi directories. Contributed by Ted Malaska.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611489 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6667. In HDFS HA mode, Distcp/SLive with webhdfs on secure cluster fails with Client cannot authenticate via:[TOKEN, KERBEROS] error. Contributed by Jing Zhao.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611508 13f79535-47bb-0310-9956-ffa450edef68
YARN-1341. Recover NMTokens upon nodemanager restart. (Contributed by Jason Lowe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611512 13f79535-47bb-0310-9956-ffa450edef68