server_cpu_quota_min

Last Updated:2026-09-03 07:27:35

This parameter is available starting with V2.2.50.

Description

server_cpu_quota_min specifies the minimum CPU quota that can be used by the system. The system automatically reserves this quota.

Query the parameter

The sys tenant and all user tenants can query this parameter by using the SHOW PARAMETERS statement or the GV$OB_PARAMETERS view.
Modify the parameter

Only the sys tenant can modify this parameter. User tenants cannot modify this parameter.

Attribute	Description
Type	Double
Default value	0, indicating adaptive adjustment Note For V4.0.0, the default value is changed from 2.5 to 1. For V4.2.1, the default value is changed from 1 to 0.
Value range	[0, 16] Note For V4.0.0, the value range is changed from [0, 16] to [1, 16]. For V4.2.1, the value range is changed from [1, 16] to [0, 16].
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. Note For V4.1.0, the setting takes effect immediately instead of after the OBServer node restarts.

If the value is 0, the system adaptively adjusts the minimum CPU quota based on the value of the cpu_count parameter:

If cpu_count is less than 8, the minimum CPU quota is adaptively adjusted to 1.
If 8 ≤ cpu_count < 16, the minimum CPU quota is adaptively adjusted to 2.
If 16 ≤ cpu_count < 32, the minimum CPU quota is adaptively adjusted to 3.
If cpu_count is 32 or more, the minimum CPU quota is adaptively adjusted to 4.

Adaptively adjust the maximum CPU quota.

obclient> ALTER SYSTEM SET server_cpu_quota_max=0;

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