HDFS-5168. Add cross node dependency support to BlockPlacementPolicy.  Contributed by Nikola Vujic


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1592179 13f79535-47bb-0310-9956-ffa450edef68
YARN-1201. TestAMAuthorization fails with local hostname cannot be resolved. (Wangda Tan via junping_du)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1592197 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6295. Add decommissioning state and node state filtering to dfsadmin. Contributed by Andrew Wang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1592438 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6337. Setfacl testcase is failing due to dash character in username in TestAclCLI. Contributed by Uma Maheswara Rao G.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1592489 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' into HDFS-6326
HDFS-6326: roll back to trunk version
HDFS-6326: more defensive exception handling for getAclStatus call in ls