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javarabbitmqspring-amqpspring-rabbit

Rabbitmq ready and unack messages

I have a queue with 50 consumers and the prefetch count of around 100. All the consumer is from single JVM instance. So, when the application goes down, the messages were in READY state. The number of messages in ready state is equal to (prefetch_count * no. of consumers).

Now the question is, what will happen to the messages in READY state? Will it redelivered or will it get dead lettered?

Solution

  • They will be redelivered.

    Messages will only be dead-lettered if the consumer specifically rejects (nacks) the message with requeue=false (and the queue is configured for dead-lettering).