YouTube is "just video" the way an iceberg is "just ice." The visible part is a player and a progress bar. Underneath lies one of the world's most sophisticated distributed systems: a YouTube tech stack powering 2.5 billion users with Google's global CDN (3,000+ edge locations), adaptive streaming protocols (DASH and HLS), horizontal database sharding via Vitess, Bigtable storage handling petabytes daily, and a two-stage machine learning recommendation engine that processes billions of interactions in real-time. This technical deep-dive reveals YouTube architecture, from upload pipelines and video transcoding to content delivery networks and neural network recommendations. You'll learn how YouTube CDN delivers…
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