enable_hbase_rowkey_ttl

Description

enable_hbase_rowkey_ttl specifies whether to enable the Rowkey TTL feature in OBKV-HBase. After you enable this feature, the system marks expired Rowkeys during queries and periodically cleans up expired columns and multi-version data of these Rowkeys in the background. After you disable this feature, even if you have enabled the enable_kv_ttl parameter, only the Normal TTL takes effect, and the Rowkey does not have the capability to be deleted after expiration.

Privilege requirements

• Query the parameter

  You can query this parameter in the sys tenant and all user tenants by using the SHOW PARAMETERS statement or the GV$OB_PARAMETERS view.

• Modify the parameter

  You can modify this parameter in the sys tenant and user tenants.

Attributes

Examples

Enable the Rowkey TTL feature:

obclient> ALTER SYSTEM SET enable_hbase_rowkey_ttl = true;