HyperEdge: An Edge CDN Infrastructure for Cost Efficient Video Streaming
summary
HyperEdge is a hybrid CDN that combines an external CDN for initial segments with a pool of underutilized devices, using multi-path transmission and a prediction-based scheduler that requests nonconsecutive chunks so late paths arrive in order. A centralized tracker cluster continuously assigns videos, ranks edge nodes, and runs global optimization. Deployed at ByteDance for six years, it manages 100,000 edge devices, serves ~100 million daily users, and achieves about 35% cost reduction—hundreds of millions saved annually—while keeping rebuffering comparable to traditional CDNs.
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chapters (7)
- 0:00Introduction
- 3:51Scaling CDNs for short videos
- 7:28HyperEdge architecture
- 9:15Video segment delivery
- 11:49Multi-path scheduler
- 15:45Control plane policies
- 17:09Production results
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