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#MySQL

Every post I've written about MySQL — 1 article, across Distributed Systems. Most recent: “Read-Your-Writes Is a Session Contract, Not a Database Setting.”

Posts tagged #MySQL

Distributed Systems01

Read-Your-Writes Is a Session Contract, Not a Database Setting

I added a read replica and within a day users reported edits that "didn't save" — they had saved, but the reads raced the replication stream and lost. These are my notes on why read-your-writes is a session contract rather than a replica setting, reproduced with a pinned 50 ms lag in Go, and the three ways to carry it — sticky routing, a GTID-style version token, and a bounded-staleness wait — compared on cost.

Jul 22