sql_throttle_rt

Description

sql_throttle_rt specifies the RT value, in microseconds. If the RT value of a query is greater than or equal to this value, the query is denied.

Privilege requirements

• Query variables

  sys tenants and all user tenants can execute the SHOW VARIABLES statement or query the SYS.TENANT_VIRTUAL_GLOBAL_VARIABLE view (Oracle mode) or the information_schema.GLOBAL_VARIABLES view (MySQL mode) to view the values of Global system variables.

• Modify variables

  • sys tenants can directly modify the values of Global system variables.

  • MySQL user tenants must have the SUPER or ALTER SYSTEM privilege to modify the values of Global system variables.

  • Oracle user tenants must have the ALTER SYSTEM privilege to modify the values of Global system variables.

Attributes

Examples

Specify the RT value of a query as 100 us.

obclient> SET GLOBAL sql_throttle_rt = 100;