HelloTech
May 10, 2024 · Backend Development
Root Cause Analysis and Optimization of G1GC Pauses Caused by StringTable Growth in Java Services
The investigation revealed that G1GC pauses were caused by uncontrolled growth of the JVM StringTable, triggered by Jackson’s InternCache interning countless random JSON field names, and was mitigated by enlarging the young generation, disabling field‑name interning, tuning G1 parameters, and monitoring StringTable size.
G1GCGC tuningJSON interning
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