Building Vectorize, a distributed vector database, on Cloudflare’s Developer Platform

What this post added

This post details the architecture and implementation of Vectorize, a globally distributed vector database built on Cloudflare's Developer Platform. It explains the core components, query processing architecture, indexing strategies (IVF and PQ), approximate nearest neighbor search with result refinement, and the eventual consistency model achieved through snapshot versioning and a WAL implemented with SQLite in Durable Objects. It highlights the use of R2 for storage and Cloudflare's Cache for I/O optimization.