Aikesheng Open Source Community

Aug 12, 2024 · Databases

Analyzing and Simulating MySQL show slave status Hang: Mutex Locks and Debugging

This article investigates why the MySQL show slave status command can hang in a 1‑master‑N‑slave replication setup, analyzes the involved mutex locks through source code inspection, and demonstrates a reproducible debugging scenario using GDB breakpoints and pstack to pinpoint lock contention.