Note
This parameter is available starting with V2.2.50.
Description
row_compaction_update_limit specifies the number of modifications that triggers major compaction of in-memory row data.
Privilege requirements
Query the parameter
The
systenant and all user tenants can query this parameter by using theSHOW PARAMETERSstatement or theGV$OB_PARAMETERSview.Modify the parameter
Only the
systenant can modify this parameter. User tenants cannot modify this parameter.
Attributes
| Attribute | Description |
|---|---|
| Type | Int |
| Default value | 6 |
| Value range | [1, 6400] |
| 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 number of modifications that triggers major compaction of in-memory row data to 6.
obclient> ALTER SYSTEM SET row_compaction_update_limit = 6;