Fly.io dumped HashiCorp's Consul because it couldn't keep up with their massive node count and super-fast latency demands. Their solution? They cooked up "Corrosion," a slick new distributed state replication engine built with Rust and SQLite.
Corrosion uses CRDTs and the SWIM gossip protocol to synchronize machine state across the globe without a central leader slowing things down. It's basically a masterclass for engineers on building resilient, speedy distributed systems!
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