This article examines how a large‑scale e‑commerce transaction platform achieved high availability through iterative architectural evolution—from early .NET monoliths to vertical and horizontal micro‑service splits—highlighting practical strategies for fault detection, rapid recovery, scaling, and operational best‑practices.
The article explains why and how to adopt open‑source projects, covering their benefits, common pitfalls, and practical guidance on selecting, using, and extending them safely through careful evaluation, testing, operational readiness, and thoughtful customization.
The article explains that HTTPS combines HTTP with TLS to provide encryption, authentication, and data integrity, describes TLS versions, key‑exchange algorithms such as RSA and ECDHE, and analyzes the network round‑trip and CPU overhead that HTTPS introduces, while also discussing deployment costs and optimization considerations.
Drawing from a decade at Huawei, the author shares twelve practical lessons on teamwork, ambition, continuous learning, strategic thinking, independent judgment, proactive action, responsibility, cultural appreciation, openness, time management, and the importance of sharing, followed by a concise summary of Ren Zhengfei's ten principles for selecting senior managers.
This article walks through configuring a MySQL high‑availability cluster using Pacemaker and Corosync, covering topology, environment setup, host preparation, NFS sharing, MySQL installation, HA resource definition, testing, and final considerations, all with detailed commands and screenshots.
This article chronicles Liu Tiansi’s 13‑year journey from a PHP/Java developer to a senior operations engineer at Tencent, detailing his open‑source contributions, large‑scale CDN management, massive game data pipelines, DevOps practices, and practical lessons for building reliable, automated infrastructure.
This article explains why Docker services need monitoring, distinguishes black‑box and white‑box approaches, compares self‑hosted and SaaS monitoring stacks, and reviews key components and popular tools such as Prometheus, InfluxDB, Grafana, Datadog, and Sysdig.
This article explains what user feedback is, why it should be analyzed, and provides a step‑by‑step methodology—including channel setup, data collection, coding, categorization, and statistical analysis—along with key performance indicators for monitoring feedback handling in product management.
A comprehensive overview of common Linux daemon processes, detailing each service’s purpose, typical use cases, and key configuration notes for system administrators seeking to understand and manage background services effectively.
This article explains MySQL's widely used MEM_ROOT memory allocator, detailing its macros, the MEM_ROOT and USED_MEM structures, initialization routine, allocation algorithm, and pointer handling, while illustrating how free and used blocks are managed via linked lists.
This guide explains Oracle's auditing capabilities, covering its purpose, three audit types, how to enable auditing via AUDIT_TRAIL, defining audit policies, controlling record generation, locating audit records, special considerations, and provides practical SQL examples.
This article chronicles how WeChat’s backend evolved from a simple messaging prototype to a globally distributed, multi‑data‑center system, detailing its message model, unified sync protocol, three‑layer architecture, platformization, disaster‑recovery design, performance tuning, and emerging resource‑scheduling challenges.
The article explains Netflix’s EVCache—a cloud‑native, memcached‑based distributed cache that provides low‑latency, high‑reliability data access across multiple regions using asynchronous Kafka‑driven replication, detailing its architecture, performance optimizations, and remaining challenges.
This article presents a comprehensive collection of 40 Java multithreading interview questions, covering the purpose of multithreading, thread creation methods, differences between start() and run(), Runnable vs Callable, synchronization utilities, memory model, locks, thread pools, and best practices for concurrent programming.
This article examines the stark contrast between Microsoft’s view of product managers as small‑business CEOs responsible for strategy, design, and market success and the more limited, execution‑focused role seen in many Chinese tech firms, highlighting the traits of good versus bad product managers.
This article explores how centuries‑old Chinese type design—from Shanghai’s Republican‑era metal type and post‑war trademark aesthetics to Hong Kong’s iconic neon signage—illustrates the subtle, experience‑driven creative process behind typography and its evolving role in contemporary visual culture.
This article explains a dynamic, template‑driven rendering architecture for e‑commerce single‑page applications, covering CMS configuration, multi‑version data storage in Redis, front‑end rendering flow, version rollback, gray‑release handling, and exception management.
Former Apple executive Kelli Richards reveals three powerful lessons on driving innovation—rejecting the need for unanimous agreement, eliminating endless feedback loops, and refusing to cling to outdated practices—illustrated with real Apple experiences and actionable strategies for modern teams.
This article walks through using PHP's cURL extension to crawl tens of thousands of Zhihu user profiles, parse the HTML with regular expressions, store the extracted data efficiently, and present the results with responsive charts and dashboards.
This article explains the architecture of both system-wide and personalized recommendation modules, compares three recommendation strategies, details the use of Apache Mahout for collaborative filtering with Java code examples, and discusses cold‑start solutions within a Spark‑Hadoop stack.
