YARN-2219. Changed ResourceManager to avoid AMs and NMs getting exceptions after RM recovery but before scheduler learns about apps and app-attempts. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611222 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6690. Deduplicate xattr names in memory. (wang)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611226 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10816. KeyShell returns -1 on error to the shell, should be 1. (Mike Yoder via wang)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611229 13f79535-47bb-0310-9956-ffa450edef68