Note
This parameter is available starting with V1.4.
Description
data_disk_usage_limit_percentage specifies the maximum percentage of data files that can be written to. Data migration is prohibited when this threshold is exceeded.
Privilege requirements
Query the parameter
The
systenant and all user tenants can use theSHOW PARAMETERSstatement or theGV$OB_PARAMETERSview to query this parameter.Modify the parameter
Only the
systenant can modify this parameter. User tenants cannot modify this parameter.
Attributes
| Attribute | Description |
|---|---|
| Type | Int |
| Default value | 90 |
| Value range | [50, 100] |
| Modifiable | Yes. You can use the ALTER SYSTEM SET statement to modify the parameter. |
| Effective upon OBServer node restart | No. The setting takes effect immediately. |
Examples
Set the maximum percentage of data files that can be written to to 90.
obclient> ALTER SYSTEM SET data_disk_usage_limit_percentage=90;
References
- Set the maximum percentage of data files that can be written to: data_disk_write_limit_percentage