On Wed, 2013-01-09 at 08:01 -0500, Bryan Kearney wrote: > > +1. We tried AMQP / QMF before and it ended up being a pain. Introduced > > another service / point of failure. > Just thinking out loud... QMF is a pain but is dead now I think. if you > do callbacks you have to buy off on alot of networking. Can you put > image factory in EC2 and run Aeolous in house?
This is a very important point: the big difference between a webhook approach and using messaging is that if A wants to notify B, in a webhook world A needs to be able to establish a network connection to B (so A in EC2 and B behind the firewall won't work) whereas in a amqp world A and B only need to be able to get to possibly different brokers that can talk to each other (e.g. A and B both to a broker in EC2). When you want to work around that with messaging-over-HTTP, you'll have to resort to things that really strain HTTP, like long polling. David
