HADOOP-11421. Add IOUtils#listDirectory (cmccabe)
YARN-2944. InMemorySCMStore can not be instantiated with ReflectionUtils#newInstance. (Chris Trezzo via kasha)
YARN-2203. [YARN-1492] Web UI for cache manager. (Chris Trezzo via kasha)
HDFS-7531. Improve the concurrent access on FsVolumeList (Lei Xu via Colin P. McCabe)
YARN-2972. DelegationTokenRenewer thread pool never expands. Contributed by Jason Lowe
HADOOP-11358. Tests for encryption/decryption with IV calculation overflow. (yliu)
YARN-2949. Add documentation for CGroups. (Contributed by Varun Vasudev)
HDFS-7373. Clean up temporary files after fsimage transfer failures. Contributed by Kihwal Lee
HADOOP-11125. Remove redundant tests in TestOsSecureRandom. Contributed by Masanori Oyama.
HADOOP-11427. ChunkedArrayList: fix removal via iterator and implement get (cmccabe)
HDFS-7543. Avoid path resolution when getting FileStatus for audit logs. Contributed by Haohui Mai.
HADOOP-11385. Prevent cross site scripting attack on JMXJSONServlet. Contributed by Haohui Mai.
HADOOP-11409. FileContext.getFileContext can stack overflow if default fs misconfigured. Contributed by Gera Shegalov
HADOOP-11428. Remove obsolete reference to Cygwin in BUILDING.txt. Contributed by Arpit Agarwal.
HDFS-7530. Allow renaming of encryption zone roots. Contributed by Charles Lamb.