TLDR Tech / Practical
Cloudflare Scales Serverless SQLite D1 with Architectural Changes
Cloudflare has detailed the architectural modifications enabling its serverless SQLite database, D1, to support millions of databases by separating the control plane from the data plane. The company utilizes Workers KV for metadata routing, Hyperdrive for connection pooling and caching against central Postgres databases, and background queues with incremental view maintenance to manage storage limits without creating regional bottlenecks.
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