Hadoop is based on Apache Hadoop 2.2.0 and includes the following additional patches:
HADOOP-10112: har file listing doesn't work with wild card.
HADOOP-10110: hadoop-auth has a build break due to missing dependency.
HDFS-5371: Let client retry the same NN when "dfs.client.test.drop.namenode.response.number" is enabled.
HDFS-5257:addBlock() retry should return LocatedBlock with locations else client will get AIOBE.
HDFS-5089: When a LayoutVersion supports SNAPSHOT, it must support
FSIMAGE_NAME_OPTIMIZATION.
