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 article explains Java's functional programming features—including Lambda expressions, method references, and the Stream API—by detailing their syntax, underlying mechanisms, and practical usage examples such as thread creation, data processing, and parallel streams.
This guide explains how to set up a self‑hosted GitLab server on an Ubuntu virtual machine using Docker and Docker‑Compose, covering environment preparation, Docker image retrieval, compose file creation, container launch, password reset, and basic GitLab usage such as user registration, project creation, SSH key configuration, and code cloning.
This article chronicles JD Baitiao’s journey from early MySQL and NoSQL solutions through DBRep to the adoption of Apache ShardingSphere, highlighting the technical motivations, decoupling strategies, performance comparisons, and the broader Database Plus vision for scalable, stable financial‑grade data architectures.
This article provides a step‑by‑step guide on installing Jenkins, configuring global tools, creating a freestyle project, pulling code from GitLab, building a Java JAR, backing up existing JARs, copying the new package to a remote server, and performing a rolling Docker Swarm update, while also addressing common SSL and SSH issues.
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.
