[rabbitmq-discuss] revoking or removing queued messages

Fri Jun 18 21:52:19 BST 2010

Alexis, I'm not familiar with Celery.

On Jun 18, 10:43 am, Alexis Richardson <ale... at rabbitmq.com> wrote:
> Shane
>
> How does Celery do things like this?  That might be a pattern to
> follow even if you don't want to use Celery per se.
>
> alexis
>
>
>
>
>
> On Thu, Jun 17, 2010 at 8:57 PM, Shane <sh... at digitalsanctum.com> wrote:
> > Thanks, Scott. Something along the lines of the second approach you
> > outlined seems like the way to go.
>
> > On Jun 17, 2:04 pm, Scott Brooks <sc... at beamdog.com> wrote:
> >> I'm pretty sure there is no way to remove a message(besides a full
> >> purge of a queue) since publishing is async so you never really have a
> >> way to refer to that message.
>
> >> Some times changes your approach can solve the problem though.
> >> I'm not sure what your needs are, but lets assume your are processing
> >> PDF files or something like that.
>
> >> One approach would be to send a message containing all the text to be
> >> processed as the message, which then the consumer grabs and works
> >> with.
> >> Another approach would be to send a message saying "document X is
> >> ready to be processed", and the consumer then grabshttp://my.pdf.processor.com/documents/X, and does the work.
>
> >> The second approach lets you respond with a "job canceled" message
> >> when you request the actual document.
>
> >> Scott
>
> >> On Thu, Jun 17, 2010 at 11:38 AM, Shane <sh... at digitalsanctum.com> wrote:
> >> > In our current system, we have a function that essentially revokes a
> >> > unit of work before it's acted on. In RabbitMQ, is there a way to
> >> > revoke or remove a message from a queue assuming it hasn't been acted
> >> > on?
>
> >> > Thanks,
> >> > Shane
> >> > _______________________________________________
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>
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