public ModifyableTableDescriptor setRegionReplication(int regionReplication) {
      return setValue(REGION_REPLICATION_KEY, Integer.toString(regionReplication));
    }
Sets the number of replicas per region.
@param regionReplication the replication factor per region
@return the modifyable TD
hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableDescriptorBuilder.java