Php-resque message queue execution

How does the php-resque message queue know that the task has been executed? for Linux operations, the status of phpdemocheck_status.php is 2, but the job should have an error because it is always in this status, in addition, no new data is generated in the database. how can we check the power failure. Phpphp-resque message queue linux

Php-resque: how does one know that a task has been executed in the message queue? for Linux operations, use php demo/check_status.php.
The check status is 2, but the job task should have an error because it is always in this status and there is no new data in the database. how can we check the power failure.