dual-master pitfalls

Efficient Ops

Oct 16, 2023 · Databases

Why Master‑Master MySQL Replication Is Risky and How to Avoid Its Pitfalls

This article explains why the dbops tool does not support MySQL master‑master architecture, describes the two common dual‑master patterns, outlines their drawbacks such as role‑confusion, dirty‑data risk, split‑brain, and update loss, and provides practical workarounds and step‑by‑step deployment instructions to safely implement or avoid dual‑master setups.