I have a netty server running the atmosphere framework for a real-time notification system over websockets.
The system works perfectly on my local machine, but when I deploy it on EC2, It just does not seem to work. I am able to telnet to the remote Netty server though. The server is accessible and ports are open on EC2
Firefox throws the following error
Using URL: ws://beta.myapp.com:2880/myhandle?id=1&name=Chinese_food_rule_2& X-Atmosphere-tracking-id=35490c47-59d6-abf6-36fa-431aa340d90a&X-Atmosphere-Framework=0.9&X-Atmosphere-Transport=websocket&X-Cache-Date=0&Content-Type=application/json
Websocket error, reason: undefined
Firefox can't establish a connection to the server at ws://beta.myapp.com:2880/myhandle?id=1&name=Chinese_food_rule_2&X-Atmosphere-tracking-id=35490c47-59d6-abf6-36fa-431aa340d90a&X-Atmosphere-Framework=0.9&X-Atmosphere-Transport=websocket&X-Cache-Date=0&Content-Type=application/json.
Websocket closed, reason: Connection was closed abnormally (that is, with no close frame being sent).
The server does not even get a request, this leads me to think that this is some EC2 web sockets gotcha which I am not aware of.