Making DISQUS realtime

This talk will overview what it took to add realtime to a truly “web scale” app. The result is the DISQUS realtime system, a highly concurrent system for allowing web clients to subscribe to arbitrary events in the DISQUS infrastructure.

The talk will be about 30 minutes with an extended Question/Answer/Open discussion time (because your ideas are good too!).

• Overview of the architecture (redis + gevent + flask) and why those choices were made
• Numbers! how much concurrency and msg/s we are supporting with realtime
• How we baked high availability into the application, not just the infrastructure
• Overview of the hardware involved
• Lessons learned (what broke hard, what worked awesome)

Suggested audience experience:

• Medium/Advanced level experience
• Familiarity with Flask, Gevent/Eventlet would be really good.