Fly.io decided to ditch their old Consul setup because it just couldn't handle their massive global scale, causing major slowdowns. So, they cooked up "Corrosion," a brand-new distributed replication engine built with Rust and SQLite.
This clever system uses CRDTs and a "gossip" protocol to keep everything in sync across hundreds of servers worldwide in under a second, completely bypassing the bottlenecks of a central leader. It's a sweet example of how to build super-fast, resilient systems!
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