[rabbitmq-discuss] Java client and Qpid

[Dmitry Andrianov]

Simon,
many thanks for the prompt reply.

I use Qpid 0.20, Next week will try to create simple test case and run it against both 0.20 and the latest 0.22

If problem is reproducible - will raise issue on their bugtracker quoting you )

Thanks 


On 14 Jun 2013, at 17:52, Simon MacMullen <simon at rabbitmq.com> wrote:

> On 14/06/13 17:43, Dmitry Andrianov wrote:
>> Unfortunately I do not know the protocol well enough to understand if
>> Qpid violates it by sending me a message before sending reply to
>> basicConsume request or not. Without reading the specs I would assume
>> that this behaviour is a valid one and it is RabbitMQ Java client
>> that needs to be more tolerant.
> 
> From the spec:
> 
>> Section 4.6, Content Synchronisation:
>> 
>> In certain cases synchronous request-response methods have an impact
>> on asynchronous content delivery on the same channel, including:
>> 
>> * The Basic.Consume and Basic.Cancel methods, which start and stop
>> the flow of messages from a message queue.
> 
> [Snip a couple of other cases]
> 
>> Guidelines for implementers:
>> 
>> * The effects of the request-response MUST NOT be visible on the
>> channel before the response method, and MUST be visible thereafter.
> 
> So I'm afraid it's QPid at fault. (Which version are you using? I
> thought they had abandoned support for AMQP 0-9-1 some time ago.)
> 
> Cheers, Simon
> 
> -- 
> Simon MacMullen
> RabbitMQ, Pivotal
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