Aikesheng Open Source Community
Aug 4, 2022 · Databases
Analysis of MySQL Router “Too Many Connections” Error in Versions 8.0.29/8.0.30 and Work‑around
The article investigates why MySQL Router 8.0.29/8.0.30 reports “ERROR 1040 (HY000): Too many connections to MySQL Router” even when the backend MySQL server has only a few connections, reproduces the issue, analyzes packet traces, and concludes that the problem exists in those versions but not in 8.0.28 or 8.0.21, likely due to a new connection‑pooling feature.
DebuggingMySQLMySQL Router
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