HDFS-7061. Add test to verify encryption zone creation after NameNode restart without saving namespace. Contributed by Stephen Chu.
HADOOP-10400. Incorporate new S3A FileSystem implementation. Contributed by Jordan Mendelson and Dave Wang.
HDFS-7032. Add WebHDFS support for reading and writing to encryption zones. Contributed by Charles Lamb.
YARN-2549. TestContainerLaunch fails due to classpath problem with hamcrest classes. Contributed by Chris Nauroth.
YARN-2529. Generic history service RPC interface doesn't work when service authorization is enabled. Contributed by Zhijie Shen
YARN-2438. yarn-env.sh cleanup (aw)
HDFS-7059. HAadmin transtionToActive with forceActive option can show
confusing message. Contributed by Rushabh Shah.
HDFS-6912. SharedFileDescriptorFactory should not allocate sparse files (cmccabe)
Merge branch 'trunk' into HDFS-6581