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Zero-latency SQLite storage in every Durable Object


Kenton Varda introduces the next iteration of Cloudflare's [Durable Object](https://developers.cloudflare.com/durable-objects/) platform, which recently upgraded from a key/value store to a full relational system based on SQLite. This is a fascinating …

This is a fascinating piece of distributed system design, advocating for a really interesting way to architect a large scale application. A Durable Object comprises code that executes on the same physical host as the SQLite database that it uses, resulting in blazingly fast read and write performance. Inspired by Litestream, each DO constantly streams a sequence of WAL entries to object storage - batched every 16MB or every ten seconds.

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