Description
The sql_throttle_rt variable specifies the RT value in microseconds. If the RT value of a query is not less than this value, the query is not allowed to be executed.
Privilege requirements
Query variables
systenants and all user tenants can execute theSHOW VARIABLESstatement or view theSYS.TENANT_VIRTUAL_GLOBAL_VARIABLEview (Oracle mode) and theinformation_schema.GLOBAL_VARIABLESview (MySQL mode) to view the values of global system variables.Modify variables
systenantThe
systenant can directly modify the value of a global system variable.MySQL user tenant
A MySQL user tenant must have the
SUPERorALTER SYSTEMprivilege to modify the value of a global system variable.V4.x
For Oracle user tenants, the
ALTER SYSTEMprivilege is required to modify the value of a global system variable, starting from V4.2.0.
Attribute description
| Attribute | Description |
|---|---|
| Type | numeric |
| Default value | -1 |
| Value range | No specific value range. The value is related to the actual business load. |
| Effective scope | GLOBAL |