Jun 30, 2025 · Backend Development

How to Diagnose and Fix JVM GC Pause Issues in High‑Concurrency Microservices

This article walks through a real‑world production case, showing how to systematically detect, analyze, and resolve severe JVM garbage‑collection pauses that caused service timeouts, by examining CPU, memory, GC logs, adjusting collector settings, and aligning JVM threads with Kubernetes resource limits.

JVMKubernetesParallelGCThreads

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How to Diagnose and Fix JVM GC Pause Issues in High‑Concurrency Microservices

JD Retail Technology

Feb 23, 2023 · Operations

Understanding and Tuning JVM ParallelGCThreads and Related Memory Parameters

This article explains the trade‑off between throughput and pause time in JVM garbage collection, details how the ParallelGCThreads, ConcGCThreads, and CICompilerCount parameters are calculated and affect performance, presents experimental results, and provides concrete configuration recommendations for both on‑heap and off‑heap memory in containerized Java applications.

DockerJVMMemory Tuning

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Understanding and Tuning JVM ParallelGCThreads and Related Memory Parameters