[rabbitmq-discuss] revoking or removing queued messages
shane at digitalsanctum.com
Thu Jun 17 20:57:29 BST 2010
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
> 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.
> 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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