YARN-2409. RM ActiveToStandBy transition missing stoping previous rmDispatcher. Contributed by Rohith

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618915 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10968. hadoop native build fails to detect java_libarch on ppc64le (Dinar Valeev via Colin Patrick McCabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618919 13f79535-47bb-0310-9956-ffa450edef68
YARN-2249. Avoided AM release requests being lost on work preserving RM restart. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618972 13f79535-47bb-0310-9956-ffa450edef68