HardSystem design

Design YouTube, then implement the cache layer.

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I designed a caching layer for YouTube, focusing on key components like content delivery, user data, and recommendation engines. For implementation, I utilized a Python dictionary as the core data structure for the cache, incorporating a Time-To-Live (TTL) mechanism to ensure data freshness. I also addressed potential concurrency issues, implementing strategies to maintain cache integrity and performance in a high-traffic environment.

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