[rabbitmq-discuss] Unknown delivery tag

Thu Feb 6 05:17:57 GMT 2014

2014-02-06 Michael Giagnocavo <mgg at giagnocavo.net>:

> As I understand, this means that we ack’d a tag that the server didn’t
> recognize, correct? Are delivery tags guaranteed to be monotonically
> increasing?
>

Yes. However, when you reconnect and reopen channels, every channel will
have its delivery tag reset.

>
>
> Could it be that we’re dequeueing a message with a high delivery tag, then
> next time we get one with a lower delivery tag and hence it’s unknown to
> the server since we already ack’d and committed?
>

Double acking will result in this exception.
-- 
MK

http://github.com/michaelklishin
http://twitter.com/michaelklishin
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