Description
major_freeze_duty_time specifies the time for triggering a daily freeze and compaction.
Limitations
Query the parameter
In the
systenant or a user tenant, you can execute theSHOW PARAMETERSstatement to query the parameter or query theGV$OB_PARAMETERSview for the parameter.Modify the parameter
You can modify the parameter in the
systenant or a user tenant.
Attributes
| Attribute | Description |
|---|---|
| Type | Moment |
| Default value | 02:00 |
| Value range | [00:00, 23:59] or disable |
| 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. |
Considerations
The value disable indicates to disable daily compactions.
Examples
obclient> ALTER SYSTEM SET major_freeze_duty_time = '02:00';