<ul><li>This comprehensive guide presents essential system design concepts, organized to help engineers understand the fundamental building blocks of modern distributed systems.</li><li>Definition: Facebook’s specialized distributed data store for social graph data, optimizing read operations while handling billions of user connections.</li><li>How it works: Uses a two-tier architecture separating caching from storage, modeling data as objects (users, posts) connected by typed associations (friendships, likes) with multiple caching tiers and eventual consistency.</li><li>Key considerations: Memory aid: “Objects connected by Typed Associations” — prioritizing efficient entity relationship storage and retrieval.</li></ul>

Survival Guide for Software Engineers

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