JD Retail Technology
Jun 27, 2023 · Backend Development
Analysis and Optimization of G1GC Long Pauses Caused by MySQL Driver Phantom References
The article investigates intermittent long G1GC pauses in a Java 1.8 application caused by mis‑configured G1 parameters and MySQL driver phantom references that retain many idle connections, then presents detailed log analysis and multiple remediation steps including JVM flag tuning, connection‑pool adjustments, and driver upgrades.
BackendG1GCJVM
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