Note
This parameter is available starting with V1.4.
Description
memory_reserved specifies the size of the memory reserved for the system-level modules.
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 |
|---|---|
| Parameter type | Capacity |
| Default value | 500M. The default unit is MB. You must specify the unit when you configure this parameter. |
| Value range | [10M, +∞) |
| 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
To ensure the normal operation of the basic modules, we recommend that you reserve sufficient memory_reserved as the guaranteed memory.
Examples
Set the size of the memory reserved for the system-level modules to 500M.
obclient> ALTER SYSTEM SET memory_reserved = '500M';