Note
This parameter is available starting with V1.4.
Description
server_balance_disk_tolerance_percent specifies the tolerance for disk imbalance in the resource unit (RU) balancing strategy across nodes. A node will participate in RU balancing based on disk usage only if its disk usage exceeds the average disk usage of nodes in the same zone by at least the specified tolerance.
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 | 1 |
| Value range | [1, 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 tolerance for disk imbalance in the RU balancing strategy across nodes to 1.
obclient> ALTER SYSTEM SET server_balance_disk_tolerance_percent = 1;