YARN-2910. FSLeafQueue can throw ConcurrentModificationException. (Wilfred Spiegelenburg via kasha)

(cherry picked from commit a2e07a54561a57a83b943628ebbc53ed5ba52718)
HADOOP-11349. RawLocalFileSystem leaks file descriptor while creating a file if creat succeeds but chmod fails. (Varun Saxena via Colin P.  McCabe)
(cherry picked from commit 03867eb1bb173c66b5eb3bebf2fe03a1188635b5)
YARN-2930. Fixed TestRMRestart#testRMRestartRecoveringNodeLabelManager intermittent failure. Contributed by Wangda Tan
(cherry picked from commit 2ed90a57fdd31d194b4a690df68b158ed9743dba)
YARN-2924. Fixed RMAdminCLI to not convert node labels to lower case. Contributed by Wangda Tan
(cherry picked from commit 437322afcaa4b1b260501af160283c97eb589419)
HDFS-7481. Add ACL indicator to the 'Permission Denied' exception. (Contributed by Vinayakumar B )

(cherry picked from commit d93f3b9815f90d24c838574a56013e6dc60dc5ad)