An open-source distributed big data storage and computing framework. Its core components include HDFS (Hadoop Distributed File System, for storing massive data) and MapReduce (a distributed computing model for processing large-scale data), serving as the foundation of the big data technology stack.

Cloudflare is a U.S.-based multinational technology company founded in 2009, with a core mission to build a faster, more secure, and more reliable Internet. Through its global edge network spanning over 330 cities across 125 countries, it provides one-stop services to millions of users worldwide—including cybersecurity solutions such as DDoS protection and Web Application Firewall (WAF), CDN content delivery and acceleration services, developer tools like Cloudflare Workers, as well as basic services including free SSL certificates and the 1.1.1.1 public DNS. Adopting a freemium model, Cloudflare is highly accessible with strong technical capabilities and industry recognition. It prioritizes privacy protection and compliance, currently handling approximately 20% of the world’s web traffic and standing as a key infrastructure provider in the Internet sector.

Target specific issues such as code errors, environment configuration abnormalities, and function operation failures. Provide cause analysis, troubleshooting steps, and final solutions.

Share practical insights, efficient tips, and pitfall-avoidance experiences from technical practice to help others avoid detours.

Conduct exchanges and discussions on open topics like technology selection, framework pros and cons, and scheme feasibility to inspire ideas.

An open-source relational database management system (RDBMS) that supports SQL. It focuses on high performance and reliability, making it suitable for storing structured data (e.g., user information, order data). It is the preferred database for small to medium-sized enterprise backend development and is often used with PHP and Java.

Recommend high-quality learning materials, tool software, tutorial courses, open-source projects, etc., to support technical improvement.

Address issues like project running speed, response efficiency, and resource occupancy. Share optimization solutions (e.g., code optimization, architecture tuning, caching strategies).

Focus on functional abnormalities, logical vulnerabilities, etc., occurring during project development/testing/launch phases. Provide troubleshooting ideas, positioning methods, and repair plans.

Target technical novices, offering step-by-step tutorials for zero-based entry, including environment setup, basic function implementation, and introductory project practice.

For developers with certain foundations, share advanced technical practices (e.g., complex function development, advanced feature application, underlying principle implementation).

Focus on project architecture selection, module splitting, technology stack matching, scalability design, and other related aspects. Share design ideas, solution frameworks, and practical cases.

The core programming language for frontend development, used to implement web interaction logic (e.g., button clicks, form validation). It supports asynchronous programming and can be extended to backend development via Node.js, serving as a foundational language for full-stack development.

Network operation and maintenance is a technical field within the operation and maintenance domain that focuses on the planning, deployment, monitoring, maintenance, optimization, and troubleshooting of computer network infrastructure. Its core goal is to ensure the connectivity, stability, security, and efficiency of the network, providing reliable communication support for various IT systems (such as servers, applications, and terminal devices).

DevOps is a methodological and practical system that integrates software Development and IT Operations. Its core lies in breaking down the barriers between development and operations teams through automated toolchains and a collaborative culture, thereby accelerating the entire lifecycle of software—from development to deployment.

A classic procedural programming language that balances high efficiency and hardware access capabilities. It is primarily used in scenarios requiring extreme performance, such as operating system development, embedded systems, and device driver programming, and serves as the underlying foundation for many high-level languages.

An extension of the C language with added object-oriented features (classes, inheritance, polymorphism), while retaining low-level control capabilities. It is widely used in game engine development (e.g., Unreal Engine), high-performance servers, image and graphics processing, and industrial software.

A cross-platform object-oriented programming language. Leveraging the "write once, run anywhere" feature of the JVM (Java Virtual Machine), it is core to enterprise-level backend development (e.g., e-commerce systems, financial platforms) and native Android app development, boasting a rich ecosystem and strong stability.