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 how applying the SMART framework—Specific, Measurable, Achievable, Relevant, and Time‑bound—helps teams define clear, actionable goals, differentiate measurable KPIs from broader KRAs, and avoid common pitfalls such as vague objectives or resource‑driven targets.
This article explains how to achieve session affinity using Nginx's ip_hash directive, covering the concept, configuration syntax, practical examples, common pitfalls, and test results for handling client IP‑based load balancing across backend servers.
This article explains how to detect, diagnose, and prevent message loss in Kafka-based message queue systems by covering system decoupling, traffic control, data consistency challenges, producer, broker, and consumer issues, and offering configuration, monitoring, and operational best‑practice solutions.
This article explains the principles of Feign, demonstrates how to set connection and read timeout values using Feign.Builder, method parameters, Options beans, configuration files, Ribbon, and Hystrix, and clarifies the precedence rules among these approaches in both standalone and Spring Cloud contexts.
This article explains the concept and practical applications of forward proxy, outlines its benefits for enterprise network security and access control, compares it with reverse proxy, and provides detailed Nginx configuration examples—including how to expose the client’s real IP—along with common tools and real‑world scenarios.
This article describes the design and implementation of a Mid‑Autumn Festival themed HTML5 canvas game, detailing the gameplay requirements, JavaScript code for the ship, food objects, image management, and the Nginx configuration needed to deploy the game online.
This article explains the fundamentals of the Domain Name System (DNS), covering domain and name‑server concepts, the hierarchical resolution process, recursive and iterative queries, performance‑enhancing techniques such as UDP usage, caching, and switching to public DNS servers, and details DNS record types and packet structure.
This article presents a detailed checklist of mandatory and recommended standards for database security, design, naming, indexing, SQL usage, and operational procedures, aiming to prevent low‑level failures in high‑concurrency, large‑scale internet applications.
This tutorial explains what Swagger is, why it is useful for RESTful API documentation, and provides step‑by‑step instructions for integrating Swagger 3.0 into a Spring Boot 2.7.6 project, including Maven dependencies, configuration classes, handling startup errors, customizing the UI, security settings, and annotation usage.
This article details ZEEK Automotive's transition to a cloud‑native architecture, describing how the company adopted Kubernetes, containerization, micro‑service unification, and full‑link gray release to improve system stability, scalability, and development efficiency across its APP ecosystem.
