[rabbitmq-discuss] Publish on a queue, then Monitor on a reply queue, with only 1 connection to the RabbitMQ server? Non-blocking?
Gavin M. Roy
gmr at myyearbook.com
Wed Sep 7 19:38:00 BST 2011
You can have multiple connections with one IO loop, assuming you're using PIka. In that case, the IOloop is a single instance across all connections, so you should setup both your connections before starting it, or use a timer to call a method after starting it that sets up your connections.
On Wednesday, September 7, 2011 at 2:02 PM, Christopher Lefevre wrote:
> That's the bit that I'm getting stuck on.
> I have a publish method that sets up a connection, then calls another function to open a channel, then publishes to the queue as shown previously.
> Within that function is a connection.ioloop.start() which I guess I don't really understand. For the individual publish/monitor functions they work as expected, the monitor will monitor and consume, while the publish only publishes once and breaks the ioloop, as expected.
> To get an asynchronous Publish, then Monitor the reply_to queue, I can instantiate the classes for the monitor/publisher I have, and it will work with 2 connections to the server. However trying to get this done with one connection is where I'm balking.
> -Christopher Lefevre
> -----Original Message-----
> From: Marek Majkowski [mailto:majek04 at gmail.com]
> Sent: Wednesday, September 07, 2011 11:45 AM
> To: Christopher Lefevre
> Cc: rabbitmq-discuss at lists.rabbitmq.com (mailto:rabbitmq-discuss at lists.rabbitmq.com)
> Subject: Re: [rabbitmq-discuss] Publish on a queue, then Monitor on a reply queue, with only 1 connection to the RabbitMQ server? Non-blocking?
> On Wed, Sep 7, 2011 at 14:21, Christopher Lefevre
> <CLefevre at transparent.com (mailto:CLefevre at transparent.com)> wrote:
> > Coming back to this after a day I realize throughout I was a bit off in describing my situation. I am actually attempting to get an asynchronous setup to work on one connection to the RabbitMQ server.
> > Connect, create a channel(s), publish to a queue, then monitor on the reply queue, in an asynchronous state, returning the reply to a web page when completed.
> Well, if you want to use asynchronous style, than you need to have
> an event loop and program using callbacks.
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