Hello!

Do you guys know how well openfire scales?

My users will be using the application to do normal chatting like msn no file transfer for now.

We will be using Amazon's EC2 server to run the chat server we would like to support over 1 Million users in total and around 30-50K active users during peak times.

Since clustering is now opensource, I though Openfire might be the way to go, how much will it cost for the coherence license or can I bipass that somehow?

Also, I wanted to develop plugin for Openfire if we go with it. Any pointers on how to set up a dev env and get going would be helpful too!

Thanks ya'all! :)