Elegantly Dumb, Powerfully Backed Mirroring: Community over Complexity
summary
AlmaLinux runs a purposely minimal mirror control plane that only maps clients to mirrors, not a CDN proxy, and it scales: 400+ community mirrors pulling from three tier‑zero rsync masters, handling 3.1 billion requests in 2026 and serving ~2.5 million systems with ~50% year‑over‑year growth. Core stack is HTTP and rsync for distribution and a tiny control layer in Python async + Valky cache, yielding high availability, no CDN bills, and easy on‑ramp for new public or private mirrors.
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chapters (11)
- 0:00Introduction and speaker background
- 2:14Why dumb infrastructure is valuable
- 3:39Problems with complex mirror systems
- 4:43How AlmaLinux’s mirror system works
- 7:09Benefits of decentralized mirrors
- 8:55Technology stack and simplicity
- 10:19Mirror system architecture flow
- 12:53Performance and growth statistics
- 15:40Encouraging community mirroring
- 16:44ASN-aware routing and private mirrors
- 17:47Quick start guide for new mirrors
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