Design Studio — Design a Video Streaming Platform
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Requirements

Scale & non-functional

  • 500M daily active users; peak 10M concurrent streams
  • 500 hours of video uploaded every minute (YouTube 2024 scale)
  • Video start latency < 2s (play button to first frame)
  • 99.95% streaming availability — buffering is immediately user-visible
  • Upload durability: zero data loss after the upload acknowledgement is returned
  • Processed video available for streaming within 30 minutes of upload completion
  • CDN cache hit rate > 95% for videos published in the last 7 days

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