[rabbitmq-discuss] Losing messages, why?

[Matthias Radestock]

On 01/03/11 21:22, DOBRO Sergei wrote:
> Another client sends a message to the worker, but no database updates
> are made. After that (some seconds later), the client sends the same
> message and the job is done.

How do you know whether the client has sent a message to the worker? And 
what causes the client to send the same message again? Is it waiting for 
a confirmation which does not arrive and hence re-trying? Does the 
client log the retry attempts, and that's how you know that something is 
going wrong?

Matthias.