[rabbitmq-discuss] Redelivery of unacknowledged messages

Matthias Radestock matthias at lshift.net
Tue Sep 30 08:01:36 BST 2008

Ben Hood wrote:
>> When are unacknowledged messages redelivered?
> After the channel in which the initial receive has been closed and a
> new channel has been setup.

To be precise, unacknowledged messages become eligible for redelivery 
when the channel (or connection) on which they have been delivered is 

If a queue has more than one consumer, the message will be delivered to 
one of the remaining consumers. Otherwise it will be enqueued and can 
thus be consumed by a consumer which comes along later.


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