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.
On April 8, a Tencent Cloud API outage caused console login failures for nearly 2,000 customers, affecting several dependent services for 87 minutes, and the detailed root‑cause analysis and subsequent improvement actions are presented to enhance system resilience and change management.
This article explains how to manage Jenkins deployment permissions using RBAC and the Role‑Based Authorization Strategy plugin, covering RBAC fundamentals, plugin installation, creating users, jobs, groups, roles, and assigning permissions to ensure secure and organized pipeline access.
This article provides a comprehensive guide on using Jenkins Pipeline to automate the deployment of Java backend projects, covering pipeline concepts, parameterized builds, code checkout, Maven compilation, JAR packaging, remote uploading, backup, update, and service restart procedures.
The author recounts his early DevOps experiences with continuous integration using TFS, PowerShell, and Azure, reflects on the current undervaluation of DevOps, reviews the “Jenkins 2.x Practical Guide” and highlights sociological insights and practical challenges of adopting CI/CD pipelines.
This article presents a comprehensive view of cloud stability governance from both front‑end and back‑end perspectives, detailing system architecture, micro‑frontend integration, CI/CD deployment pipelines, SLB forwarding and health‑check configurations, monitoring dashboards, UI automation testing, and the resulting operational improvements.
This article explains how to use Jenkins Pipeline to automate the deployment of a Java backend project, covering pipeline basics, parameterized builds, GitLab branch checkout, Maven compilation, JAR packaging, remote file transfer, backup, update, and service restart with Docker Swarm.
A recent security analysis reveals how a malicious contributor infiltrated the open‑source xz compression tool over two and a half years, inserted a backdoor using IFUNC hooks to compromise OpenSSH, and was eventually uncovered due to a CPU‑spike bug, highlighting severe risks for Linux and macOS systems.
This article walks through the step‑by‑step process of turning a single‑server prototype into a highly available, horizontally‑scaled system that can serve over a million users, covering server configuration, database selection, load balancing, caching, CDN, stateless networking, multi‑data‑center deployment, message queues, monitoring, and sharding strategies.
This article details a comprehensive system refactoring project that transformed a monolithic, all‑in‑one architecture into a distributed, micro‑service‑based design with a completely rebuilt database model, covering problem analysis, solution design, phased implementation, testing, and rollout strategies.
This guide explains how to install, configure, and run Prometheus Alertmanager with Docker, set up routing and receivers, integrate it with Prometheus alert rules, test alerts, customize email templates, and optimize notification settings for reliable monitoring and alerting.
