Cloudpack help you easier to use Hadoop
see url http://www.cloudera.com/blog/2012/07/hbase-replication-overview-2
hbase replication version 0.0.1 ---Motivation Replace the original Hbase replication functions support hadoop 1.0.x and zookeeper 3.4.x read Hlog/sync to swap with HDFS(HDFSAdapter)
ZooKeeper Concurrent Thread .....test