Note
For V4.2.0, 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 cluster where the standby tenant resides.
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 | Capacity |
| Default value | 0 MB, which indicates that no traffic limit is set. |
| 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, or GB). 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 cluster where the standby tenant resides to 200 MB.
obclient> ALTER SYSTEM SET standby_fetch_log_bandwidth_limit = '200M';