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Coder Life Journal

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Latest from Coder Life Journal

23 recent articles

Coder Life Journal

Oct 26, 2025 · Artificial Intelligence

What Is AI, Machine Learning, Data Science, and Deep Learning? A Beginner’s Guide

This article introduces the fundamentals of artificial intelligence, distinguishing ANI and AGI, explains machine learning as a core AI branch, describes data and data science, and clarifies the relationship between neural networks and deep learning, using simple examples and visual diagrams for beginners.

AIMachine LearningNeural Networks

0 likes · 6 min read

What Is AI, Machine Learning, Data Science, and Deep Learning? A Beginner’s Guide

Coder Life Journal

Aug 29, 2025 · Backend Development

Designing High‑Concurrency Systems: Tips from a 10‑Year Java Veteran

The article defines high concurrency, explains how to locate bottlenecks and understand user traffic patterns, then outlines practical measures such as distributed architecture, clustering, caching, asynchronous queues, rate limiting, database tuning, preloading, and fault‑tolerant monitoring to build robust high‑throughput systems.

asynchronous-processingcachingdatabase optimization

0 likes · 4 min read

Designing High‑Concurrency Systems: Tips from a 10‑Year Java Veteran

Coder Life Journal

Aug 22, 2025 · Operations

Diagnosing Java OOM, High CPU, Disk & Network Issues: A Practical Guide

This guide explains how to troubleshoot common online Java problems—including high CPU, OutOfMemoryError, disk I/O, and network latency—by using tools such as top, jps, jstack, jmap, MAT, df, and ping to pinpoint root causes like infinite loops, memory leaks, lock contention, and resource exhaustion.

CPUJavaMAT

0 likes · 8 min read

Diagnosing Java OOM, High CPU, Disk & Network Issues: A Practical Guide