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 tutorial walks through setting up a TiDB MCP Server, configuring it with AI tools like CodeBuddy, and using natural‑language commands to query TiDB databases, highlighting deployment steps, available tools, and practical application scenarios.
After a recent deployment, a Java service began experiencing over five Full GC events per minute, traced to Log4j2’s thread‑local buffer misconfiguration and a -XX:PretenureSizeThreshold setting that forced large StringBuilder objects directly into the old generation, leading to memory pressure and frequent Full GCs.
An unexpected ‘Broken pipe’ error halted production, prompting a deep dive into logs, trace IDs, and monitoring tools like Kibana and SkyWalking, which uncovered Feign client timeouts, a costly SQL update, and redundant microservice calls, leading to targeted fixes that restored normal device operation.
XiaYue, a powerful Burp Suite extension, automates vertical and horizontal privilege escalation detection by comparing responses across multiple permission levels, offering smart deduplication, advanced filtering, parameter replacement, visual data tables, persistent configuration, and performance optimizations, while the author also shares a heartfelt story about their child's school start.
LinkedIn, the creator of Kafka, has largely abandoned Kafka in favor of a new log storage system called Northguard, whose design mirrors Apache Pulsar with features like storage‑compute separation, log striping, and a multi‑layer data model, offering superior scalability, operability, consistency, and durability for massive data streams.
This article walks through the evolution of an online supermarket from a simple monolithic website to a fully‑featured microservice architecture, highlighting the challenges, design decisions, component choices, monitoring, tracing, testing, and the trade‑offs of service mesh versus custom frameworks.
This guide shows how to integrate Jenkins with Enterprise WeChat by installing the wxwork-notification plugin, configuring a smart robot webhook, and adding pipeline post steps that send markdown success or failure alerts to a WeChat group, complete with code examples and screenshots.
This article provides a comprehensive overview of RocketMQ's architecture, detailing its core components, network protocols, storage mechanisms, producer‑consumer workflow, and transactional messaging, while highlighting differences between Remoting and gRPC and explaining key design choices for high performance and reliability.
A personal case study shows how a sudden surge of malicious bot traffic exhausted CDN bandwidth, how enabling referer‑based anti‑hotlinking blocked the attack, and how a local Nginx + Proxifier setup restored image access for the author’s notes.
This article explains RabbitMQ's system architecture, covering producers, brokers, consumers, exchanges, routing keys, bindings, queue storage, network protocols, and reliability features, using clear analogies and diagrams to illustrate core concepts.
