We have RabbitMQ queues, for instance, a queue named queue-sign which receives messages related to signing documents. We have a rare situation where two users might simultaneously send 25,000 contracts each for signing. I do not want the second user to wait until the first 25,000 contracts are processed. We chose RabbitMQ because we have quite heavy objects and face issues with our database. To avoid creating jobs and so on for reading, we decided to use RabbitMQ. What is the best ways to handle this? For small count of sign messages I can use priority queues, but for big I don’t want to block each other.

Context of the problem: