Scalable Video Feed & Recommendation System
Design a high-scale short-form video feed system similar to TikTok's 'For You' page. The system must support 500 million daily active users, provide personalized content with sub-200ms latency, and handle massive ingestion of user interaction signals. Explain how you would architect the multi-stage recommendation pipeline (Retrieval and Ranking), manage global video distribution, and ensure seamless playback across varying network conditions while maintaining high availability.
KafkaFlinkRedisCassandraMilvusVector DBCDNHLSgRPCS3NoSQLMachine Learning
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