Note
This parameter is available starting with V1.4.
Description
net_thread_count specifies the number of network I/O threads.
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 | 0 |
| Value range | [0, 128]
NoteFor V4.3.5 BP2, the value range of this parameter is adjusted from [0, 64] to [0, 128]. |
| Modifiable | Yes. You can use the ALTER SYSTEM SET statement to modify the parameter. |
| Effective upon OBServer node restart | Yes. You need to restart the OBServer node for the setting to take effect.
NoteFor V4.4.0, the effective mode of this parameter is adjusted from "effective upon OBServer node restart" to "effective immediately". |
Considerations
By default, the number of I/O threads for RPC and MySQL Libeasy is 1/8 of the number of CPU cores.
If the value of
net_thread_countis N (N > 0), the number of I/O threads for RPC and MySQL Libeasy is N.
Examples
Set the number of network I/O threads to 6.
obclient> ALTER SYSTEM SET net_thread_count = 6;
References
For more information about CPU-related parameters, see CPU-related parameters.