[rabbitmq-discuss] Going crazy solving PRECONDITION_FAILED

Tue Feb 25 18:55:31 GMT 2014

On 25 Feb 2014, at 22:00, cw storm <cwstorm at gmail.com> wrote:

> I don't understand why we would be getting this error below.  Everything was working until we have multiple consumer subscriptions created in rabbit.  Each consumer subscriptions has it own conn/channel.  Please, please, help.
> 
> (reply-code=406, reply-text=PRECONDITION_FAILED - unknown delivery tag 2, class-id=60, method-id=80)

Most likely you double ack/reject the same delivery.

MK

Software Engineer, Pivotal/RabbitMQ