Check out http://socket.io . A single ec2 instance should be able to serve thousands of concurrent channels easily. Especially with a asynchronous web server such as node.js (I'm using Tornado as it allowed me to port my python code easily). If you need message propagation among instances, you could use a message broker such as rabbitmq. Its probably a bit more work to setup your own solution based on that instead of using an external API but can hardly be beat when it comes to pricing.
-- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/df51vzP6zSkJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
