How to Slash MySQL Master‑Slave Lag from Seconds to Milliseconds with Parallel Replication
This article explains why MySQL replication lag hurts performance, then details a three‑layer parallel replication strategy—including logical‑clock parallelism, binlog group‑commit tuning, and slave‑side optimizations—provides full my.cnf configurations, performance test results, monitoring commands, utility scripts, common pitfalls, and a summary of the achieved improvements.
