[rabbitmq-discuss] acknowledgement in client side
Simon MacMullen
simon at rabbitmq.com
Fri Sep 21 10:59:46 BST 2012
On 21/09/12 10:46, Majid Azimi wrote:
> hi guys,
>
> I have some questions about acknowledgement in client side*:
>
> 1. if basic.publish finishes executing and there is no exception thrown,
> this means message has been received in message server? or we need to
> enable transactions or use confirmSelect() to be sure?
You need to use tx or confirms. Just having basic.publish finish means
that the message has gone out on the network.
(And the reason for this is that if the basic.publish were to know that
the server had received the message, we'd need a network round trip per
publish, and performance would go WAY down.)
> 2. Is it possible to use txSelect() in consumer side?
Yes, acks/rejects are transactional.
http://www.rabbitmq.com/semantics.html
Cheers, Simon]
--
Simon MacMullen
RabbitMQ, VMware
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