[ckan-dev] AMQP topic vs direct exchange

[James Gardner]

Hi Friedrich,

I had a good look at AMQP over Christmas and from what I can tell,
workers can't consume a message from a topic queue unless they are
running at the time the message was sent. This would mean messages sent
to the queue could be lost even if durability settings were enabled.

The core use case is one of a worker queue so I believe we should switch
to a using a direct exchange as documented here:
http://www.rabbitmq.com/tutorial-four-python.html or even the simpler
version here: http://www.rabbitmq.com/tutorial-two-python.html

Any thoughts?

Cheers,

James