[rabbitmq-discuss] Lose messages between restarts of broker
rwirth at demandware.com
Mon Nov 1 16:15:42 GMT 2010
> The advice that Matthew gave applies to unacknowledged message too. If
> the publisher commits on a transacted channel then persistent messages
> in a durable queue are guaranteed to be on disk up to the point when
> they get removed from the queue. This includes any period that messages
> spend in an unacknowledged state.
I re-tested and confirmed. I had some unack'd messages still on the queue from an earlier producer session/channel that wasn't transactional; in that case, a consumer can't make "non-transactional" existing data transactional which makes sense of course.
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