HADOOP-10840 Fix OutOfMemoryError caused by metrics system in Azure File
HADOOP-10839 Add unregisterSource() to MetricsSystem API.
HDFS-7153 Add storagePolicy to NN edit log during file creation.
HDFS-7093Add config key to restrict setStoragePolicy.
HDFS-6581 Support for writing to single replica in RAM. Applied HDFS-6581.merge.15.patch to C4hamplain. This is a consolidated patch containing all feature changes and was applied to trunk
YARN-2254TestRMWebServicesAppsModification should run against both
YARN-1979TestDirectoryCollection fails when the umask is unusual.
