Note
This parameter is available starting with V1.4.
Description
system_memory specifies the memory capacity allocated to the tenant with the ID 500.
Notice
System reserved memory cannot be allocated to regular tenants.
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 | 0M, indicating that the system automatically adjusts the memory usage strategy based on the current memory situation. |
| Value range | [0M, +∞) |
| 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 memory capacity allocated to the tenant with the ID 500 to 0M.
obclient> ALTER SYSTEM SET system_memory = '0M';