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by ryanshrott
30 days ago
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Gnutellas real legacy is not the file sharing, it is the lessons it taught about protocol design. Flood-based query routing is awful at scale, but it is dead simple to implement, with no central server, no SPOF, and it works behind NAT. The structured overlay networks that came after, like Chord, Pastry, and Kademlia, fixed the routing efficiency problem, but they also added enough complexity to make them harder to deploy in practice. Most modern P2P systems ended up somewhere in the middle: DHT for discovery, direct connections for data transfer. It is the same tradeoff people keep running into with mesh networking and federated protocols today. |
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