Celery Tasks on RabbitMQ 4.0: Classic Queues vs Quorum Queues

When building distributed systems with Celery and RabbitMQ, one of the most common pitfalls is tasks disappearing. This usually happens in clustered setups when using classic queues. RabbitMQ 4.x introduced some changes and new queue types, which affects Celery users in production. In this post, we'll explore:

How RabbitMQ cluster connections work

Differences between classic and quorum queues

Limitations of each queue type