[Haskell-cafe] Looking for architecture/infrastructure advice on coping with thousands of concurrent clients

Isak Hansen isak.hansen at gmail.com
Wed Jul 9 17:40:24 UTC 2014

Let's just imagine there aren't enough poker sites out there already and
that it makes sense to build another one. Basically, there will be players
connecting to one or more tables, most likely talking some kind of JSON
based protocol with the server(s).

#1 - What's a good way to set up and maintain compressed and encrypted
connections from the clients to my cluster? I've been wanting to try out
websockets, think that'll do?

#2 - I'm new to Haskell and would appreciate thoughts on how to store and
process game state. Imagine a plain application managing 1000 tables of
poker, responding to player input (that magically appears) and timer events
(e.g. folding players that fail to take action). What data structures and
libraries should I be looking at here? Thoughts on concurrency and how I
organize program flow?

#3 - I'm thinking of ZMQ to wire components together. Would I be better off
basing my cluster on Cloud Haskell or some other library for distributed

Would love some quick pointers and feedback here, thanks in advance,
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