CODEWITHSUNDEEP
rabbitmqmessage-queueamqp
wolverdude
wolverdude

Reputation: 1663

RabbitMQ: fanout from queue (not from exchange)

Is there any way in RabbitMQ to have multiple consumers get the same message from the same queue?

I need to send the same message to anyone who's listening but also ensure that someone deals with it. Basically, I need the fanout functionality of an exchange combined with the basic.ack functionality of a queue. Is there any way to accomplish this in a scalable way?

Upvotes: 5

Views: 1513

Answers (1)

Abram Simon
Abram Simon

Reputation: 3269

If you are trying to ensure that the message is properly processed, acknowledgement already provides this capability. If your consumer is unable to process the message and does not provide an ack it will be requeued and processed again by the next available consumer. Implementing multiple competing consumers on the same queue will give you round-robin delivery, allowing the other consumers a chance for success.

How scalable this will be depends on how long it takes to process each message compared to the incoming rate, queue durability, prefetch and how many competing consumers you have on the queue.

Upvotes: 1

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