Note
This parameter is available starting with V1.4.
Description
server_balance_disk_tolerance_percent specifies the tolerance of disk imbalance in the resource unit (RU) balancing strategy. A node participates in disk-based RU balancing only when its disk usage exceeds the average disk usage of nodes in the same zone by the specified tolerance.
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 | 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 of disk imbalance in the RU balancing strategy to 1.
obclient> ALTER SYSTEM SET server_balance_disk_tolerance_percent = 1;