BestHub
Sign in
Xuanwu Backend Tech Stack
Author

Xuanwu Backend Tech Stack

Primarily covers fundamental Java concepts, mainstream frameworks, deep dives into underlying principles, and JVM internals.

80
Articles
0
Likes
156
Views
0
Comments
Recent Articles

Latest from Xuanwu Backend Tech Stack

80 recent articles
Xuanwu Backend Tech Stack
Xuanwu Backend Tech Stack
Dec 23, 2025 · Backend Development

Mastering Redis Distributed Locks: From SETNX to RedLock and WatchDog

This article walks through the evolution of Redis distributed locks—from basic SETNX mutual exclusion to atomic SET with expiration, Lua‑based safe unlocking, Redisson's WatchDog auto‑renewal, and the RedLock algorithm—highlighting pitfalls, best‑practice implementations, and interview‑style Q&A for robust production use.

Distributed LockJavaRedis
0 likes · 15 min read
Mastering Redis Distributed Locks: From SETNX to RedLock and WatchDog
Xuanwu Backend Tech Stack
Xuanwu Backend Tech Stack
Dec 18, 2025 · Backend Development

Mastering Two-Phase Commit: Theory, XA & JTA in Java

This article explains why local transactions fail in micro‑service architectures, introduces the Two‑Phase Commit (2PC) protocol with its coordinator and participant roles, details each phase with examples, shows how XA and JTA implement 2PC in Java, and discusses its drawbacks and interview‑ready alternatives.

2PCJTAJava
0 likes · 14 min read
Mastering Two-Phase Commit: Theory, XA & JTA in Java
Xuanwu Backend Tech Stack
Xuanwu Backend Tech Stack
Dec 17, 2025 · Backend Development

When to Share or Isolate Thread Pools? A Deep Dive for Java Backend Architects

This article explains the trade‑offs between using a shared thread pool and creating dedicated pools in Java backend services, outlines scenario‑based decision rules, provides concrete Spring‑Boot configuration examples, and offers advanced dynamic tuning and interview‑style Q&A for reliable concurrency management.

JavaPerformanceSpring Boot
0 likes · 14 min read
When to Share or Isolate Thread Pools? A Deep Dive for Java Backend Architects
Xuanwu Backend Tech Stack
Xuanwu Backend Tech Stack
Nov 24, 2025 · Databases

Mastering MySQL’s Three Core Logs: Redo, Undo, and Binlog Explained

This article provides a comprehensive guide to MySQL’s three essential logs—redo, undo, and binlog—detailing their hierarchy, purposes, write mechanisms, configuration parameters, and how they cooperate during transaction processing and replication, while also offering troubleshooting tips for common issues.

LogsMySQLbinlog
0 likes · 17 min read
Mastering MySQL’s Three Core Logs: Redo, Undo, and Binlog Explained
Xuanwu Backend Tech Stack
Xuanwu Backend Tech Stack
Oct 30, 2025 · Databases

Master MySQL Locks: From Basics to Advanced Optimizations

This article provides a comprehensive overview of MySQL's lock mechanisms, covering lock granularity, lock types, intention locks, record/gap/next‑key locks, their interaction with transaction isolation levels, two‑phase locking, deadlock handling, and practical optimization techniques for high‑concurrency applications.

DeadlockIsolation LevelsMySQL
0 likes · 20 min read
Master MySQL Locks: From Basics to Advanced Optimizations
Xuanwu Backend Tech Stack
Xuanwu Backend Tech Stack
Oct 22, 2025 · Artificial Intelligence

How Rerank Transforms Retrieval‑Augmented Generation for Accurate AI Answers

This article explains the limitations of basic Retrieval‑Augmented Generation (RAG), introduces Rerank technology as a two‑step refinement process, compares dual‑encoder and cross‑encoder methods, and reviews popular Rerank models to help developers build more precise AI‑driven retrieval systems.

Artificial IntelligenceInformation RetrievalRAG
0 likes · 10 min read
How Rerank Transforms Retrieval‑Augmented Generation for Accurate AI Answers