Hadoop is based on Apache Hadoop 1.2.0 and includes the following additional patches:
HDFS-2802: Added support for RW/RO snapshots in HDFS.
HDFS-4750: Added support for NFSv3 interface to HDFS.
MAPREDUCE-5109: Added support to apply
Job view-aclto job lists on JobTracker and also to the JobHistory listings.MAPREDUCE-5217: Fixed issues for
DistCPwhen launched by Oozie on a secure cluster.MAPREDUCE-5256: Improved
CombineInputFormatto make it thread safe. This issue was affecting HiveServer.HDFS-4334: Added support to enable adding a unique id to each INode.
HDFS-4635: Move
BlockManager#computeCapacitytoLightWeightGSet.HDFS-4434: Added support for inode ID to inode map.
HDFS-4785: Fixed issue for Concat operation that affected removal of the concatenated files from InodeMap.
HDFS-4784: Fixed Null Pointer Exception (NPE) in
FSDirectory.resolvePath().HADOOP-8923: Fixed incorect rendering of the intermediate web user interface page caused when the authentication cookie (SPENGO/custom) expires.
HDFS-4108: Fixed
dfsnodelistto work in secure mode.HADOOP-9296: Added support to allow users from different realm to authenticate without a trust relationship.

