[rabbitmq-discuss] Ruby AMQP client not 1.8.0 friendly

Tony Garnock-Jones tonyg at lshift.net
Fri Jul 2 05:36:48 BST 2010

Hi Jon,

Jon Brisbin wrote:
> =ERROR REPORT==== 1-Jul-2010::08:04:36 ===
> connection <0.793.0> (running), channel 1 - error:
> {amqp_error,precondition_failed,
>             "parameters for queue 'xportal.war' in vhost 'cloud' not equivalent",
>             'queue.declare'}

As Matthew said, this is the result of a new server feature in 1.8.0 that
checks the Durable and AutoDelete flags for equivalence across separate
queue.declare calls for a given queue name.

To be clear, you should be fine with the AMQP gem as released, so long as you
are able to change your application to make sure that the Durable and
AutoDelete settings for a given queue are consistent across time.


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