This article examines the rapid growth of data centers, defines modular data center concepts, compares real‑world modular designs, outlines core modular attributes, and analyzes market participants and the benefits of modularization for efficiency, cost, and operational simplicity.
This article explains HBase's column‑oriented architecture, key concepts such as Rowkey, ColumnFamily, and Region, provides Java API examples for table operations, and offers practical optimization techniques—including pre‑splitting, Rowkey design, caching, and compaction settings—to improve read/write performance.
This article recounts how a severely broken advertising RTB platform was rescued by securing dedicated resources, redesigning the architecture, running parallel development, gradually shifting traffic, and applying disciplined management practices to replace the legacy system with a scalable, low‑latency solution.
The article presents a comprehensive overview of Sina Weibo’s third-generation backend architecture, detailing its orthogonal three-tier horizontal model, vertical technical layers, key middleware components such as MCQ, Motan, Object Store and SSDCache, and the WatchMan distributed tracing system that together ensure high availability, scalability, and efficient service delivery.
The article explains how the lack of Command‑Query Responsibility Segregation (CQRS) leads to unnecessary complexity, outlines the benefits of read‑write separation, presents a simple e‑commerce example, and summarizes Vladimir Khorikov’s three CQRS types and when to apply them.
This article explains the origins and standards of WebSocket, compares its full‑duplex communication model with traditional HTTP, details server‑side and client‑side APIs with Java and JavaScript code examples, and presents a practical case study of real‑time device tracking using Tomcat.
This article introduces the latest PHP language features—including namespaces, traits, closures, generators, and a range of new syntax enhancements—explaining their purpose, usage, and code examples to help developers build modern, maintainable web applications.
Oracle stopped publishing public security patches and updates for Java 7 in April 2015, urging users to migrate to Java 8 or obtain long‑term commercial support, which has caused compatibility challenges for tools still relying on deprecated Java 7 features and prompted consideration of alternative JVMs.
This guide explains how to use Linux's local mail service and the at, batch, and cron commands to create, list, modify, and delete one‑time and recurring scheduled tasks, including command syntax, examples, and troubleshooting tips.
During a detailed live session, senior Dianping engineer Wang Xinchun explains the company's real‑time computing platform built on Apache Storm, covering use cases such as dashboards, search and recommendation, system architecture, data ingestion tools like Blackhole and Puma, performance tuning, monitoring, and practical best‑practice recommendations.
The article reviews and compares sixteen popular front‑end frameworks—including Bootstrap, jQuery UI, Dojo, Mootools, YUI, and Chinese alternatives like Kissy and Qwrap—highlighting their features, strengths, and drawbacks, and then offers practical recommendations for choosing the most suitable framework for desktop, mobile, or intranet projects.
The article reviews Google’s Borg paper, highlighting how Borg distinguishes production and non‑production tasks, manages jobs and containers, improves utilization through mixed‑workload scheduling, enforces isolation via overload and over‑commitment controls, and compares Borg’s approach to other cluster managers.
This article explains MySQL’s logical architecture, detailing its three main layers, the responsibilities of each layer, connection management, authentication, query parsing, optimization, caching, and the key modules that together enable MySQL’s pluggable storage engine design.
This article outlines five frequent user‑experience errors—overlooking micro interactions, over‑investing in homepages, over‑reliance on text, generational design gaps, and ignoring multi‑screen behavior—and offers practical guidance to create more user‑centric websites.
In his 2015 China Hotel Marketing Summit keynote, Ctrip CTO Ye Yamin explained how machine‑learning models built on purchase behavior and order data improve hotel room availability predictions, shorten confirmation times, personalize recommendations, and evaluate advertising effectiveness, illustrating a data‑driven approach to user experience and operations.
The article examines the evolution from traditional SOA and ESB to modern microservices, outlining key characteristics such as componentization via services, business‑aligned team structures, treating services as products, lightweight communication, decentralization, automation, failure‑tolerance, and evolutionary design, while discussing practical adoption challenges.
The talk explains Facebook's early engineering culture—emphasizing rapid "Hack" iterations, a decentralized organization that avoids dependencies, open code‑base ownership, data‑driven debate, and the strategic hiring of strong engineers—to illustrate how these practices drive high‑speed product development.
This article explains Linux TIME_WAIT related kernel parameters, their effects on client and server performance, practical tuning recommendations, and how to monitor and resolve high TIME_WAIT counts on busy servers.
This tutorial walks you through configuring a CentOS server for unattended installation using Kickstart, covering yum repository setup, required services (tftp, dhcp, http), firewall and SELinux adjustments, Kickstart file creation, and the final automated OS deployment.
The article explains the evolution from single‑block to three‑tier software architecture, outlines the benefits and drawbacks of monolithic applications, and discusses why modern internet‑scale systems increasingly need to move beyond monoliths to meet scalability, maintainability, and rapid delivery demands.
