Each of the queue drivers supported by Laravel has its pros and cons, and sometimes you may want to switch between drivers to accommodate business needs. While in maintenance mode, a Laravel application will return a 503 response on every request, preventing visitors from taking any action that could enqueue more jobs.
Otherwise, they'll just pause and wait for the application to be back up.
Another approach is to follow the following steps: For example, if you're switching from the database queue connection to the redis connection.
I recently published a book titled "Laravel Queues in Action" that covers everything I know about running queues in Laravel.