Note
This parameter was introduced in OceanBase Database V4.3.5.
Description
The recover_table_dop parameter specifies the maximum number of tables that can be concurrently restored during the cross-tenant table import phase of table-level restore.
Privilege requirements
Query the parameter
You can execute the
SHOW PARAMETERSstatement or query theGV$OB_PARAMETERSview in thesystenant and any user tenant.Modify the parameter
You can modify the parameter in the
systenant and any user tenant.
Attributes
| Attribute | Description |
|---|---|
| Type | Int |
| Default value | 0 |
| Valid values | [0, +∞) |
| Modifiable | Yes. You can execute the ALTER SYSTEM SET statement to modify it. |
| Effective upon OBServer node restart | No. It takes effect immediately after it is set. |
Considerations
This parameter controls the parallelism of the cross-tenant table import phase of table-level restore. For more information about the table-level restore process, see Restore process.
For more information about parallel restore, see Restore a table.
Example
Set the maximum number of tables that can be concurrently restored during the cross-tenant table import phase of table-level restore in the mysql tenant to 6.
obclient> ALTER SYSTEM SET recover_table_dop = 6 TENANT = 'mysql';
