Reddit team answers more of your questions about keeping Reddit running (most of the time). We're also working on things like developer tooling, Kubernetes, moving to a service-oriented architecture, lots of fun things.

Get a behind-the-scenes look from our engineering team about how our cloud architecture is set up, how requests are processed in Jira or Confluence, and how we handle performance and availability.

After using a bunch of methods to scale like R/W split, MySQL partitioning and witnessing them being inadequate for our rapid growth, we came to the conclusion that scaling vertically can only get you so far. The more we thought about it, the more it made sense for us to shard our database.