Note
This parameter is available starting with V4.2.0.
Description
standby_fetch_log_bandwidth_limit specifies the total bandwidth available for log synchronization from the primary or source tenant to the standby tenant in the standby tenant's cluster.
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 | Capacity |
| Default value | 0 MB, indicating that no traffic limit is imposed. |
| Value range | [0, 10000 G] |
| 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
When you set this parameter, you must specify the unit (B/KB/MB/GB, etc.). The unit is case-insensitive.
Examples
Set the total bandwidth available for log synchronization from the primary or source tenant to the standby tenant in the standby tenant's cluster to 200 MB.
obclient> ALTER SYSTEM SET standby_fetch_log_bandwidth_limit = '200M';