Note
This parameter is available starting with V1.4.
Description
system_memory specifies the memory size reserved for the tenant with ID 500.
Notice
The reserved memory cannot be allocated to a user tenant.
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 | 0M, which indicates that the system automatically adjusts the memory usage strategy based on the current memory status. |
| 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 size reserved for the tenant with ID 500 to 0M.
obclient> ALTER SYSTEM SET system_memory = '0M';