This article examines how Ctrip integrates data analysis into product design through two detailed case studies—its homestay channel evolution and the Kezutong app order‑detail redesign—highlighting tools, methodologies, and results that illustrate data‑driven decision making in product management.
This article details Ctrip's deployment of a large‑scale virtual cloud desktop solution for its call center, covering the motivations, original OpenStack architecture, its limitations, the redesigned decoupled architecture, and the operational practices such as resource over‑commit, network tuning, monitoring, and automated testing that ensure stability and scalability.
This article introduces Druid as an open‑source, distributed column‑store OLAP engine, explains its architecture and indexing mechanisms, discusses real‑time and batch data ingestion for order analytics at Qunar, compares it with other engines, and shares practical tips and pitfalls.
The article explains a new Chrome‑targeted phishing method that uses fullscreen mode and a carefully placed JPEG image to mimic the browser’s address bar and pop‑up dialogs, detailing the technique, visual cues, and security implications for users and researchers.
The article traces the evolution of minicomputers from IBM's RISC‑based Power series and proprietary UNIX systems through a competitive era of closed architectures, to the modern shift toward open X86‑based platforms, highlighting how open standards, Linux and Intel’s strategies reshaped the market and reduced customer risk.
The article presents a comprehensive programming philosophy that emphasizes repeatedly refining code, writing elegant, modular, readable, and simple programs, handling errors and null pointers robustly, and avoiding over‑engineering, offering practical guidelines applicable to any software development language.
This guide walks through practical MySQL optimization steps, including status checks, variable inspection, slow‑query and general‑log configuration, essential management commands, detailed mysqldump usage, mysqldumpslow analysis, and the mysqlsla utility for performance diagnostics.
The article examines long‑standing pain points in network operations—from industry bias and costly manual tasks to data‑center networking and interconnect challenges—while exploring how SDN and modern automation can reshape the role of network engineers for more resilient, business‑driven infrastructures.
This guide demonstrates how to simulate a blocking situation in MySQL using two client connections, set a long lock wait timeout, execute conflicting UPDATE queries, and then query the InnoDB lock wait tables to identify blocked and blocking threads along with wait duration.
This article introduces WebVR, an experimental JavaScript API that enables VR experiences on the web, walks through setting up a three.js‑based boilerplate, explains key files like VRControls.js, VREffect.js, and webvr‑polyfill.js, and shows how to create a simple rotating cube demo for mobile cardboard viewers.
This article explains how to combine MVP architecture with RxJava in Android development, covering framework selection, step‑by‑step MVP construction, thread management using RxJava, and practical Q&A on testing, modularization, and memory‑leak prevention, providing a comprehensive guide for building decoupled, responsive mobile apps.
This article outlines essential MongoDB document best‑practice guidelines, including key naming restrictions, collection organization, avoiding custom _id values, pitfalls of array fields, compression of large fields, using MD5 hashes for long strings, case‑sensitivity handling, and index size limits, illustrated with real‑world cases.
The article explains Oracle 11g's VKTM background process, how time drift warnings appear in the alert log, analyzes trace files to pinpoint the drift, discusses underlying causes such as OS load, and provides the patch and event‑setting steps needed to fix the bug.
This guide explains how to choose representative mobile device sizes, compares four front‑end adaptation techniques—meta‑scale, percentage width, media‑query responsive, and REM scaling—and offers practical advice for designers and developers to coordinate their workflows for seamless handoff.
This article provides a comprehensive guide to SeaJS, covering its CMD‑based module definition, the define syntax, factory parameters, module identifiers, startup process, debugging tools, loading flow, and key differences from RequireJS, with practical code examples and reference links.
This article shares a real-world case study of migrating a SQL Server 2008 R2 environment to SQL Server 2014, detailing the pre‑migration research, architecture redesign with AlwaysOn high‑availability, testing procedures, implementation steps, performance tuning, and common pitfalls encountered during the three‑month project.
This guide explains how to back up a MySQL Galera Cluster by leveraging the State Snapshot Transfer (SST) mechanism, detailing the default and custom scripts, required parameters, execution flow, and the key benefits of using SST for point‑in‑time, non‑intrusive backups.
The article reviews WeChat’s newly open‑sourced PhxSQL, a MySQL clustering solution that promises high availability and strong consistency, examines its complex architecture with added Phxbinlogsvr and Phxsqlproxy components, and discusses practical concerns such as deployment difficulty, replication latency, lack of multi‑master writes, semi‑synchronous behavior, and monitoring challenges.
This article explains practical methods for measuring iOS app performance—including startup time, page load, memory, CPU and smoothness—by instrumenting code, using Apple Instruments tools, analyzing webview loading, and employing runtime techniques such as dynamic library hooking and script‑driven profiling.
Understanding the nature of security blind spots, this article explains how malicious modules can attach global hooks to inject arbitrary code into Node.js applications, highlighting the risks of module imports and offering insight into protecting against such injection attacks.
