Explaining distributed systems and architecture through stories. Author of the "JVM Performance Tuning in Practice" column, open-source author of "Spring Cloud in Practice PassJava", and independently developed a PMP practice quiz mini-program.
This guide outlines the most common production failures—including network, server, database, software, security, storage, configuration, and third‑party service issues—and provides detailed steps for detecting, diagnosing, and resolving each type to maintain system stability and reliability.
This article introduces the fundamental concepts of database sharding, including data fragmentation, nodes, logical and physical tables, broadcast and single tables, sharding keys, strategies, algorithms, binding tables, SQL parsing, routing, rewriting, execution, result merging, distributed primary keys, data masking, distributed transactions, migration, and shadow databases, providing a comprehensive guide for designing and operating a sharded architecture.
The article details Bosideng’s multi‑year digital transformation, describing how the apparel company migrated its legacy systems to cloud‑native architectures using Kubernetes, containerization, unified microservices, and Alibaba Cloud MSE to achieve zero‑loss deployment, traffic governance, and accelerated business innovation.
The article explains how RocketMQ 5.1.0 introduces a tiered storage module that offloads messages to cheaper media, describes its design, architecture layers, quick‑start configuration, upload and read mechanisms, prefetch cache, fault recovery, current development plans, and remaining challenges.
This article explains a MySQL master‑slave synchronization failure caused by a corrupted relay log, walks through the replication principles, analyzes slave status and GTID differences, and provides step‑by‑step commands to skip the problematic GTID and restore replication.
This article explains the Raft consensus algorithm, detailing its roles, leader election process, term management, fault handling, and how it ensures consistency in both single‑node and multi‑node distributed systems for modern cloud‑native applications.
This article examines the shortcomings of local locking in microservices, introduces distributed locking concepts, and walks through five progressive Redis-based lock implementations—from a simple SETNX bronze approach to a Lua‑scripted diamond solution—detailing their mechanisms, code examples, and trade‑offs.
This article explains full‑chain load testing, compares Alibaba Cloud's shadow‑database and shadow‑table data‑isolation solutions, and evaluates them on performance, stability, and cost to help practitioners choose the most suitable approach for their production environments.
This article provides a comprehensive guide to Java exception handling, covering exception categories, bytecode‑level mechanisms, common pitfalls, Alibaba’s coding standards, best‑practice recommendations, custom exception design, and global handling strategies for RPC and HTTP services in Spring Boot.
This article documents a MySQL read‑write splitting architecture, investigates an unexpected slave‑node crash, and provides a step‑by‑step guide to using Keepalived for monitoring and automatically restarting the MySQL container to achieve high availability of the replica.
