Replicating Hive nested tables

Cloudera Replication Manager does not support Hive nested tables. What do I do if there are Hive nested tables in the source cluster?

Replication Manager does not support Hive nested tables for replication. Therefore, it is recommended that you move the nested tables to a different location in HDFS and then replicate Hive external tables. However, if this is not possible, you can perform the following steps in the given order as a workaround.

Solution

Create a Hive replication policy on the target cluster. Ensure that the Additional Settings > Replication Option > Metadata only option is selected to replicate the metadata of required files and directories.

note
If you are using Cloudera Public Cloud 7.2.15 or lower and if you are using Amazon S3 as the disaster recovery cluster, ensure that you (the administrator) run the following command after the Hive metadata replication is complete:
ALTER TABLE table SET LOCATION "[***[S3A://S3_BUCKET/WAREHOUSE_PATH]***]";
Create a HDFS replication policy on the source cluster to replicate the table data.