usladha

Hi,

I am looking towards developing a generic application in which the user can configure multiple rules and get alerted on it.

I am looking at using Drools, but the user can dynamically configure rules and then I would have to restart Drools engine.

I would like to ask HN for its suggestions.

Thanks

I would like to know what is a real cost of running a service like Whatsapp. It looks like a simple socket connection stuff. Does Whatsapp stores and forwards the messages or is it peer to peer.

I would like to know the disruption point of services like WhatsApp

Hi,<p>I would like to know how do sites like ideone.com, topcoder.com etc take the code, compile it in the backend, run it and come back with the results.<p>My hunch is that the code is moved into a text file and then its compiled via gcc/javac/other compilers and then execute it and come back with the results.<p>I have two questions.<p>1. Is this scalable, and if not how to scale it up 2. How is the code sandboxed so that some malicious code doesn't get executed<p>Thanks