[rabbitmq-discuss] Acked Message getting redelivered

[Simone Busoli]

If you need to have messages delivered in a at least once or exactly once
fashion I don't think there is any other way, but if you are ok with
loosing messages then looking at the redelivered flag will be much easier.
On Jan 19, 2012 5:17 PM, "Iain Hull" <iain.hull at workday.com> wrote:

> > As far as my experience goes it's correct, you have to implement it at a
> higher level.
> Yes but this is hard when messages are consumed by a cluster, they would
> have to share a single store to track processed messages or use a local
> store and ensure that certain messages are only processed by specific hosts
> in the cluster.
>
> -----Original Message-----
> From: Busoli, Simone [mailto:Simone.Busoli at ferrari.com]
> Sent: 19 January 2012 08:50
> To: Iain Hull; Eugene Kirpichov
> Cc: rabbitmq-discuss at lists.rabbitmq.com
> Subject: RE: [rabbitmq-discuss] Acked Message getting redelivered
>
> As far as my experience goes it's correct, you have to implement it at a
> higher level.
>
> -----Original Message-----
> From: rabbitmq-discuss-bounces at lists.rabbitmq.com [mailto:
> rabbitmq-discuss-bounces at lists.rabbitmq.com] On Behalf Of Iain Hull
> Sent: giovedì 19 gennaio 2012 09:46
> To: Eugene Kirpichov
> Cc: rabbitmq-discuss at lists.rabbitmq.com
> Subject: Re: [rabbitmq-discuss] Acked Message getting redelivered
>
> Thanks Eugene,
>
> From: Eugene Kirpichov [mailto:ekirpichov at gmail.com]
> > Acks are indeed asynchronous.
>
> So this means that the only reliable way to implement "at most once
> delivery" is to remember the messages uuids that you have processed, which
> won't work for clustered consumers.  Is this correct or is there another
> way to achieve this?
>
> Regards,
> Iain.
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