HDFS-6934. Move checksum computation off the hot path when writing to RAM disk. Contributed by Chris Nauroth.
HDFS-7278. Add a command that allows sysadmins to manually trigger full block reports from a DN (cmccabe)
YARN-2726. CapacityScheduler should explicitly log when an accessible label has no capacity. Contributed by Wangda Tan
YARN-2591. Fixed AHSWebServices to return FORBIDDEN(403) if the request user doesn't have access to the history data. Contributed by Zhijie Shen
HDFS-6934. Revert files accidentally committed.