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Java Architecture Diary
Java Architecture Diary
May 29, 2024 · Backend Development

How GraalVM Native Image’s New Native Memory Tracking Helps Diagnose Memory Usage

GraalVM Native Image now supports Native Memory Tracking (NMT), allowing developers to monitor off‑heap memory allocations, compare Java and native execution, integrate with JFR, and assess performance impact through detailed reports and experimental events.

GraalVMJFRNative Memory Tracking
0 likes · 17 min read
How GraalVM Native Image’s New Native Memory Tracking Helps Diagnose Memory Usage
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Oct 18, 2022 · Backend Development

Diagnosing HTTP Timeout Issues in Spring Boot Microservices Caused by Caffeine Cache Eviction Lock Contention

The article analyzes a weekend outage of a Spring Boot microservice where all HTTP requests timed out, tracing the root cause to Caffeine's synchronous cache eviction lock being blocked by a long‑running compute operation, and proposes using AsyncCache with a dedicated thread pool to avoid similar contention.

Cache EvictionConcurrencyJFR
0 likes · 11 min read
Diagnosing HTTP Timeout Issues in Spring Boot Microservices Caused by Caffeine Cache Eviction Lock Contention