Scaling for Success and Failure at Reddit and Netflix

Having worked on some of the highest trafficked sites in the world, Jeremy Edberg solves for growth. Says the Netflix and Reddit infrastructure lead, “The key to scaling is finding your bottlenecks before your users do.” Some of the ways Netflix does this is via auto-scaling, automated simulations (the Simian Army) and choosing frameworks with active communities. For Reddit, the company deals with its massive audience by pushing non logged-in users to the CDN, using a bloom filter to return sets, and cacheing votes in the queue.