Note
This parameter was changed from a cluster-level parameter to a tenant-level parameter in V4.2.1 BP2.
Description
The backup_data_file_size parameter specifies the maximum file size of a single data backup file.
Privilege requirements
Query the parameter
The
systenant and all user tenants can execute theSHOW PARAMETERSstatement or query theGV$OB_PARAMETERSview to query the parameter.Modify the parameter
The
systenant and user tenants can modify the parameter.
Attributes
| Attribute | Description |
|---|---|
| Type | Capacity |
| Default value | 4 GB. The unit is specified when the parameter is configured. The default unit is MB. |
| Value range | [512 MB, 4 GB] |
| Modifiable | Yes. You can execute the ALTER SYSTEM SET statement to modify the parameter. |
| Effective upon OBServer node restart | No. The setting takes effect immediately. |
Examples
Set the maximum file size of a single data backup file to 4 GB.
obclient> ALTER SYSTEM SET backup_data_file_size = '4G' ;