[rabbitmq-discuss] Best way to ping server from client

Tue Dec 17 18:41:16 GMT 2013

On 17/12/2013 17:24, Alvaro Videla wrote:
> On Tue, Dec 17, 2013 at 6:18 PM, James Gardner<james.gardner at noaa.gov>  wrote:
>> >Great to get your reply, I didn't expect to hear from the Creator;). Sorry
>> >about the delay, I wanted to think further on this before responding.
>> >The access_request idea was the type of answer I was looking for, but alas:
>> >http://www.rabbitmq.com/undeprecated.html
>> >...so I can't base a solution on it.
> I'm not sure IF we are ever going to remove the access class. Maybe
> some other RabbitMQ dev can answer this question.

Well, keeping compatibility with older clients tends to be more work 
than we anticipate so these days we only tend to take things out if we 
really need to, and I don't see a big need to ever take out access.request.

However, if you just want to issue an AMQP method that acts as a no-op, 
it might be more future-proof to redeclare an already-existing queue or 
exchange, or to reissue basic.qos. All of those tend to be more or less 
a no-op if they don't change anything.

Redeclaring a queue / exchange also has the advantage over basic.qos and 
access.request that you can set no_wait = true and thus turn it into an 
asynchronous method (i.e. you won't wait around for a declare-ok).

Cheers, Simon