[rabbitmq-discuss] RabbitMQ, Gretty, and Channel question

[Burt Prior]

Hi Peter!

Thanks for your reply.  I'm extremely excited about the possibilities
of RabbitMQ and Gretty for the architecture (EDA) and app i'm
building.

Here's what I did last night:  I created a bare-bones Grails app
(1.3.7/tomcat), installed the rabbit plugin, and coded simple a web
service interface in UrlMappings and a (rest) controller that sends a
text message every time the web service is invoked.  (later I'll pass
JSON as the message transport)

class ActivityRestController {

   def sendMessage = {
        rabbitSend 'hello', 'someMessage'
    }
}

GET /web-service-app/activity

As i mentioned, I want a simple web service endpoint that put (JSON)
messages on the queue.

Testing the above web service with:  'ab -n 10000 -c 100
http://localhost:8080/web-service/activity
This works great.  this puts 10,000 messages on the queue perfectly (a
bit slowly) every time.
I think works perfectly because a new thread is created by tomcat for
every request.
That's why I don't have to worry about channel thread safety.

This is NOT the case with Gretty, for reasons I don't understand.

Could I get your thoughts on this?

Thanks very much,
Burt Prior



On Sep 22, 1:34 am, Peter Ledbrook <pe... at cacoethes.co.uk> wrote:
> > I've included the (working, no error) Gretty code below.  Could I ask for
> > your insight as to why there are more messages in the queue than the
> > producer (ab) sent?
>
> Have you tried counting the number of requests that Gretty is
> handling? Assuming that there are zero messages on the queue
> initially, I can only imagine that 1003 messages are being published.
> If you can confirm that's not the case, then we'll have to look
> elsewhere.
>
> Peter
>
> --
> Peter Ledbrook
> Grails Advocate
> SpringSource - A Division of VMware
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