See Hive Replication for usage information.
Version 2 of Hive Replication
This document describes the initial version of Hive Replication. A second version is also available: see HiveReplicationv2Development for details.
Purposes of Replication
Replication is the process of making a duplicate copy of some object such as a database, table, or partition. There are two main use cases for replication: disaster recovery and load balancing.