expertReal System Design Problems
Design Meta's Social Graph Storage System — billions of relationships at query speed.
The graph-at-social-network-scale problem: how billions of friendships and follow relationships are stored and queried, how the graph is partitioned across machines without making common queries prohibitively expensive, and how operations like mutual-friends or second-degree-connections execute efficiently at this scale.
Ready to design this system end to end?
Generate a complete, structured system design answer — requirements, capacity estimation, API design, architecture, database choice, scaling, caching, fault tolerance, security, trade-offs, and more, walked through the way a strong senior engineer would in a real interview.
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