Redesigning Workers KV for increased availability and faster performance

This post details the complete redesign of Workers KV, a critical key-value store, following a major outage caused by reliance on a third-party cloud provider. The new architecture shifts to Cloudflare's own infrastructure, using a distributed database for small objects and R2 for larger ones, ensuring high availability, eliminating single points of failure, and improving performance. This represents a significant architectural shift for a core service.