F1 Graph Storage & TAO Internals

How Meta stores and queries the social graph for 3 billion users

Deep dive into Meta's TAO (The Associations and Objects): the objects-and-associations data model, read-after-write consistency via cache invalidation, the MySQL + cache architecture, association queries (assoc_get, assoc_count, assoc_range), write-through caching, and cross-region replication. Builds the foundation for the Design Social Graph module.

Estimated time: 15 minutes

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