[rabbitmq-discuss] getting duplicated delivery

Billy Hand billythethird at gmail.com
Thu May 16 15:38:50 BST 2013

I'm using a short program I wrote that generates exactly one message.  I've
made sure of that by stopping the consumers and observing only one message
getting put in the queue.  I also log every message consumed and everyone
that is duplicated is identical (including the correlation ids).

If its meaningful at all I'm running RabbitMQ from the RPM on the main site

On Thu, May 16, 2013 at 2:08 AM, Tim Watson <watson.timothy at gmail.com>wrote:

> On 16 May 2013, at 01:17, Billy Hand <billythethird at gmail.com> wrote:
> > When I put it on my live server (16 cores, mostly idle, fast) a single
> message gets consumed simultaneously by all the workers (duplicated).
> Are you sure about that? It's not just the same payload being sent
> repeatedly? What does your consumer code look like and how have you
> determined that this is taking place? Once a message is acked and
> delivered, a queue will not send it (i.e., the same message) to any further
> consumers. Are you checking the correlation-id to confirm the uniqueness of
> the message?
> Cheers,
> Tim
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