Why a 4‑TB MySQL Instance Hangs on Startup and How to Fix It

A detailed forensic analysis reveals that a MySQL 5.7 instance stalls during startup due to a mismatch between InnoDB flush‑sync settings and truncate‑related redo logs, and the article explains how to diagnose the issue with TOP, stack traces, and source‑code inspection, then offers three practical work‑arounds.

DBAInnoDBdebugging

0 likes · 15 min read

Why a 4‑TB MySQL Instance Hangs on Startup and How to Fix It

Qunar Tech Salon

Sep 9, 2021 · Databases

InnoDB Startup Hang Analysis: Truncate, Flush Sync, and Debugging Strategies

An in-depth investigation of a MySQL InnoDB startup deadlock caused by truncate operations and the innodb_flush_sync parameter, detailing log observations, stack traces, source code examination, and three practical solutions including GDB intervention, parameter adjustment, and data directory cleanup.

InnoDBTRUNCATEdebugging

0 likes · 15 min read

InnoDB Startup Hang Analysis: Truncate, Flush Sync, and Debugging Strategies