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Full GC

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IT Services Circle
IT Services Circle
Jan 29, 2025 · Backend Development

How to Handle Frequent Full GC and High CPU Usage in Java Backend Development

This article explains common interview questions on frequent Full GC and high CPU usage in Java backend development, detailing root causes, JVM parameter adjustments, memory leak prevention, and code optimization techniques, along with practical code examples and tool recommendations for effective performance tuning.

CPU optimizationFull GCJVM
0 likes · 8 min read
How to Handle Frequent Full GC and High CPU Usage in Java Backend Development
Mike Chen's Internet Architecture
Mike Chen's Internet Architecture
Aug 12, 2023 · Backend Development

JVM Performance Tuning: Six-Step Process and Key Parameters

This article explains why JVM memory tuning is essential for high‑pay roles, outlines six practical steps—including GC monitoring, heap dump generation, analysis, and parameter adjustments—and provides detailed guidance on heap size, generation ratios, GC types, and thread stack settings to reduce Full GC frequency and improve application performance.

BackendFull GCGarbage Collection
0 likes · 7 min read
JVM Performance Tuning: Six-Step Process and Key Parameters
DevOps
DevOps
Feb 10, 2022 · Operations

Eight Real-World Online Failure Cases and Their Resolution Strategies

The article presents eight authentic production incidents—including JVM Full GC, memory leaks, idempotency flaws, cache avalanches, disk‑I/O thread blocking, MySQL deadlocks, DNS hijacking, and bandwidth exhaustion—detailing their causes, diagnostics, and practical remediation steps for engineers.

Bandwidth ExhaustionCache AvalancheDNS hijacking
0 likes · 15 min read
Eight Real-World Online Failure Cases and Their Resolution Strategies
Xianyu Technology
Xianyu Technology
Jan 4, 2022 · Backend Development

Full GC Diagnosis and Tuning for Xianyu Backend Services

The article details three Xianyu backend incidents where Full GC pauses caused latency spikes or outages, analyzes root causes ranging from survivor space shortage and mis‑tuned CMS to oversized async Log4j events and massive string‑concatenation logs, and presents remediation steps such as switching to G1GC, adjusting Log4j settings, and using parameterized logging to eliminate the pauses.

BackendFull GCGarbage Collection
0 likes · 23 min read
Full GC Diagnosis and Tuning for Xianyu Backend Services
Efficient Ops
Efficient Ops
Sep 23, 2021 · Operations

Why Did Our New Deployment Crash? Uncovering Metaspace‑Induced Full‑GC

The article recounts a staged rollout of the Maybach service on elastic cloud, details the timeline of successful and failing deployments, analyzes JVM metrics revealing excessive Metaspace usage that triggered continuous full garbage collections, and explains how this caused system‑wide timeouts and a half‑hour outage.

Full GCJVMMetaspace
0 likes · 10 min read
Why Did Our New Deployment Crash? Uncovering Metaspace‑Induced Full‑GC
JD Tech Talk
JD Tech Talk
Nov 7, 2018 · Backend Development

Diagnosing Full GC and Memory Leak Issues in a Java Backend Application

This article details a step‑by‑step investigation of frequent full GC events and high CPU usage in a Java backend service, covering memory analysis with SGM, heap dumps, identification of large Base64 image strings, static encryption utilities, and remediation actions such as heap size increase and custom encryption handling.

Full GCJVMJava
0 likes · 7 min read
Diagnosing Full GC and Memory Leak Issues in a Java Backend Application