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JVM performance

3 articles · Page 1 of 1
Java Architect Handbook
Java Architect Handbook
May 21, 2026 · Backend Development

How to Diagnose Frequent Full GC in Production Systems? (Second Interview at Taobao)

The article explains why Full GC should be minimized, defines normal versus abnormal GC frequencies, outlines the root causes of Full GC, and provides a step‑by‑step troubleshooting workflow with concrete code snippets, monitoring commands and real‑world examples for Java backend engineers.

Garbage CollectionJVM performanceTroubleshooting
0 likes · 13 min read
How to Diagnose Frequent Full GC in Production Systems? (Second Interview at Taobao)
HelloTech
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
0 likes · 37 min read
Root Cause Analysis and Optimization of G1GC Pauses Caused by StringTable Growth in Java Services