[throwawayReply]

I doubt it, EVE typically has ~10-20k concurrents players, that's actually relatively small to other xmpp-based services.

[nivertech]

10-20k concurrent users is nothing. I maintained ejabberd with 500K concurrent and built customj Erlang systems handling million of concurrent users per node.

[mickael]

Yes, exactly: https://medium.com/processone/ejabberd-massive-scalability-1...

And this is on a single node. ejabberd can scale to a huge number of concurrent users.