MAPREDUCE-6070. yarn.app.am.resource.mb/cpu-vcores affects uber mode but is not documented. Contributed by Tsuyoshi OZAWA
HDFS-6966. Add additional unit tests for encryption zones. Contributed by Stephen Chu.
HDFS-6621. Hadoop Balancer prematurely exits iterations. Contributed by Rafal Wodjdyla and Benjamin Bowman.
HDFS-7045. Fix NameNode deadlock when opening file under /.reserved path. Contributed by Yi Liu.
HADOOP-9540: move CHANGES.txt entry to 2.6
HADOOP-10373: move CHANGES.txt entry to branch-2.6
YARN-2534. FairScheduler: Potential integer overflow calculating totalMaxShare. (Zhihai Xu via kasha)
HDFS-7042. Upgrade fails for Windows HA cluster due to file locks held during rename in JournalNode. Contributed by Chris Nauroth.
HADOOP-11085. Excessive logging by org.apache.hadoop.util.Progress when value is NaN. Contributed by Mit Desai
HDFS-7034. Archival Storage: Fix TestBlockPlacement and TestStorageMover. Contributed by Jing Zhao.
Merge trunk into HDFS-6584