This article walks through a complete, step‑by‑step solution for collecting Nginx access logs, converting them to JSON, shipping them with Promtail to Loki, and visualizing the data in Grafana, including Docker deployment, dashboard import, and world‑map plugin installation.
This guide outlines comprehensive best practices for database server operations, covering hardware selection, OS and kernel tuning, storage choices, MySQL configuration, performance monitoring, backup strategies, security measures, high availability, automation, and systematic maintenance procedures to ensure optimal reliability and efficiency.
This article explains the concept of observability, contrasts it with traditional monitoring, outlines its benefits for system stability, reliability and performance, and provides practical guidance on building a full‑stack observability platform using logs, metrics, tracing and modern cloud‑native tools.
This guide walks you through creating a cloud‑based service that bundles Black Myth: Wukong, the Steam client, and a remote desktop tool, detailing instance setup, remote configuration, streaming steps, and troubleshooting to achieve a seamless gaming experience.
This article outlines the background, overall framework, and platform construction of enterprise digital transformation, illustrating each component with detailed diagrams that guide organizations in planning and implementing comprehensive digital strategies to achieve competitive advantage.
This article shares ten practical operations strategies—including change rollbacks, safe handling of destructive commands, prompt customization, rigorous backup and verification, production environment discipline, careful handovers, robust alerting, cautious automatic failover, meticulous checks, and simplicity—to dramatically improve system reliability and availability.
This article explains why service stability is critical, outlines the importance and key factors of synthetic monitoring, provides practical guidelines for implementing it, and then describes fault‑drill concepts, benefits, processes, and common cloud‑native tools to proactively discover and mitigate failures in micro‑service environments.
Learn how to set up Nginx as a front‑end load balancer for web applications, define upstream servers and proxy_pass directives, and apply round‑robin, least‑connected, ip‑hash, weight, timeout, and backup server options to optimize traffic distribution and reliability.
On August 19, NetEase Cloud Music suffered a severe infrastructure‑related outage that prevented user login, playlist loading, and song search, prompting a two‑hour recovery effort, a brief free‑membership compensation, and highlighting the critical role of proper change management, gray releases, disaster recovery, and cross‑functional coordination in large‑scale services.
This article outlines a typical operations incident workflow, identifies four key stages where large language models can assist, discusses implementation challenges, introduces the Ops framework and Copilot design, and shares practical examples and a real‑world case to help engineers adopt AI‑driven fault management.
This article analyzes real‑world search query characteristics, breaks down a typical search system architecture, classifies cacheable data, compares result‑level, intermediate‑value and multi‑layer caches, discusses update, prefetch and placement strategies, and highlights common pitfalls such as cache miss, consistency, and resource overhead.
This article explains what a data metric system is, why it’s essential for organizations, the stages of building it, required resources, organizational alignment, and a step‑by‑step path to create a robust, data‑driven indicator framework that supports product development, operations, and strategic decision‑making.
On August 19 the NetEase Cloud Music service suffered a major outage that was traced to a complex migration of its Hangzhou data center to Guizhou, highlighting large‑scale operational risks, technical debt, and strict continuity constraints for high‑traffic internet platforms.
This article examines the pain points of a custom ticket system, introduces FastGPT’s knowledge‑base and query capabilities, outlines integration architecture and concrete features, and shows how the combined solution reduces ticket resolution time dramatically while improving overall operational efficiency.
The author recounts a sudden CPU spike on a Kubernetes pod caused by excessive JVM garbage collection, walks through step‑by‑step diagnostics using top, thread inspection, jstack, and network file transfer, identifies a flawed Excel export loop, and shares the fix and lessons learned.
A detailed account of GitHub’s recent worldwide outage reveals that a rollback of database infrastructure changes caused widespread service failures across GitHub.com, Pages, Copilot, and the API, highlighting the challenges of stateful database reliability in large platforms.
This article outlines a comprehensive set of automated operations scripts, including baseline checks, service monitoring, Docker and Kubernetes maintenance, security inspections, and a well‑organized directory layout with roles, system, network, database, application, security, automation, and infrastructure sections.
This article describes how to use Grafana's Flowcharting plugin and Prometheus metrics to create a dynamic, interactive dashboard that visualizes each logical node of a push notification pipeline, enabling rapid trace‑ID based troubleshooting and reducing manual investigation effort.
This guide explains how to identify and remove outdated Elasticsearch indices by listing shards, filtering target indices, deleting them with a shell loop, and automating the process with a scheduled cron job, helping keep ELK performance optimal.
A collection of Zhihu answers debates whether adopting Kubernetes is necessary, presenting viewpoints from developers and ops leaders, highlighting cost, complexity, operational benefits, deployment commands, and practical considerations for small and large scale projects.
This guide outlines key operational metrics—availability, failure rate, MTTR, MTBF, response time, throughput, error rate, capacity utilization, latency, data integrity, and more—explaining their calculations, typical benchmark values, and practical application areas to help organizations monitor and improve IT performance.
This article introduces ten indispensable tools for operations engineers, detailing each tool's functionality, ideal use cases, key advantages, and practical examples, while also providing code snippets and visual illustrations to help readers understand and apply them effectively.
The article details China's 2024‑2027 IT standards action plan, CAICT's dual ITU and domestic DevOps assessment, Changan Automobile's Gaia platform passing both certifications, and insights from senior engineers on the benefits, implementation challenges, and future roadmap of their DevOps transformation.
The article analyzes why test environments are inherently less stable than production, identifies frequent changes as the root cause, and proposes two container‑based approaches—One‑Box for small services and soft isolation for large microservice systems—plus automated health and business inspections to achieve reasonable, cost‑effective stability.
This technical report details the background, architecture, construction, core issues, migration plans, and future roadmap of moving 58's HBase clusters to a cloud‑native environment, highlighting cost reduction, operational automation, and performance optimizations.
This article outlines the three essential steps for scaling a tag system from initial deployment to full maturity, highlights typical challenges such as incomplete functionality, business system integration, and permission management, and provides practical solutions and best‑practice recommendations for each stage.
This article compiles several Zhihu users' candid accounts of a typical Linux operations day, highlighting constant interruptions, emergency firefighting, performance tuning, monitoring, tool development, and a balanced time‑allocation strategy to make ops work more efficient and sustainable.
This article explains the concept of quality operations, outlines its main components, lists essential quality‑operation KPIs, describes how to collect and analyze KPI data, and shows how to align KPI metrics with overall business strategy.
FAW‑Volkswagen successfully earned both ITU DevOps international certification and the domestic DevOps standard assessment for its R&D Efficiency Platform and Integrated Operations Platform, showcasing how standardized DevOps practices can accelerate digital transformation, improve delivery quality, and enhance operational efficiency in the automotive industry.
The article details the design, core technical solutions, high‑availability architecture, performance optimizations, and open capabilities of Buffalo, JD.com’s distributed DAG‑based job scheduling platform that supports massive task volumes, complex dependencies, and flexible resource management.
This article analyzes the role, application scenarios, stability challenges, and comprehensive governance framework of Apache Kafka at Soul, covering deployment, configuration, monitoring, standard controls, common misuse, and future directions toward cloud‑native solutions.
This article introduces Ansible as an open‑source automation tool, explains its declarative, abstract and idempotent characteristics, shows how to install it with pip, outlines its core architecture components, describes its working principles, and provides usage examples for its seven main commands.
This guide explains the key Docker CLI commands—including image listing, pulling, saving, loading, removing, running, starting, stopping, and inspecting containers—providing clear examples and output to help you efficiently manage Docker images and containers.
This comprehensive guide outlines the seven key pillars—operations, high‑availability architecture, capacity governance, change management, risk governance, fault management, and chaos engineering—that together form a systematic approach to building and maintaining a reliable, 24‑hour backend system.
A sudden worldwide surge of Windows Blue Screen of Death incidents on July 1, linked to a CrowdStrike security‑agent update, crippled Microsoft 365 services, disrupted airlines and highlighted the far‑reaching impact of a single software change on global IT stability.
This article examines the characteristics of mobile application development for supply‑chain logistics, covering terminal framework selection, operations‑backend design, backend service architecture, scenario‑driven advantages, user‑experience pitfalls, and future trends such as 5G, IoT, and generative AI.
This article presents a comprehensive case study of NetEase Cloud Music's automatic upgrade platform, detailing the background challenges, technical architecture, sidecar versus component upgrades, workflow orchestration, operational safeguards, performance metrics, and future roadmap for large‑scale microservice migrations.
The article explains the core concept of deployment pipelines in Continuous Delivery 2.0, outlines essential quality‑gate mechanisms, and details five design principles—build once, loose coupling, parallelization, fast feedback, and important feedback—plus team collaboration disciplines such as immediate pause and security audit.
Jpom is a lightweight, low‑intrusion Java‑based tool that streamlines online building, automatic deployment, daily operations, and project monitoring, offering features like node management, SSH terminal, Docker handling, and easy installation, making it suitable for individuals and small enterprises.
This article provides a detailed overview of the end‑to‑end IT project management lifecycle, including product and requirement management, development and testing steps, version release procedures, and post‑release operations, offering practical guidance for teams to design and control their workflows.
Jpom is a simple, low‑intrusion Java‑based platform that provides online project building, automatic deployment, daily operations, and monitoring features, offering node management, SSH terminal, Docker handling, and a one‑click installation process suitable for individuals and small enterprises.
The article explains how to build reliable microservices by isolating failures, applying graceful degradation, change‑management, health checks, self‑healing, fallback caching, retry strategies, rate limiting, fast‑fail principles, circuit breakers, and failure‑testing to ensure high availability in distributed cloud‑native systems.
When a VMware VM with a 200 GB system disk runs an 11 GB Docker service, it may report ‘no space left on device’ because the LVM logical volume for /var is only 1 GB, and the guide shows how to extend the relevant LVM volumes and resize the filesystems to resolve the issue.
This guide outlines the purpose, scope, principles, and detailed specifications for log management—including file naming, retention periods, content rules, security handling, and monitoring—to ensure reliable issue tracing, data safety, and regulatory compliance across all system development projects.
This article walks through a real‑world incident where a data‑platform server showed near‑100% CPU usage, explains step‑by‑step investigation using top, pwdx, and jstack, identifies a time‑conversion utility as the root cause, and presents a streamlined script‑based solution that reduced CPU load by thirtyfold.
Suzhou Bank’s Mobile Banking 5.0 platform, showcased at the 23rd GOPS Global Operations Conference, demonstrates how a unified micro‑service architecture, advanced security technologies, and a comprehensive DevOps platform can elevate development efficiency, meet international standards, and drive innovative financial services.
The article explains the complete shutdown of CentOS, outlines viable alternative Linux distributions, and provides detailed guidance on planning and executing database migrations to ensure security, performance, and compatibility during the transition.
This article presents ten useful Python automation scripts covering file renaming, web page downloading, data cleaning, scheduled tasks, email sending, testing, database backup, log analysis, file compression, and document generation, each with clear explanations and ready‑to‑run code examples.
This guide compiles essential Bash one‑liners for Apache and Nginx log files, showing how to list top IPs, count unique visitors, tally page hits, filter bots, and generate time‑based request statistics for effective web‑service monitoring.
This article provides a comprehensive guide to designing and deploying an enterprise‑grade monitoring system, covering requirement analysis, tool selection such as Prometheus and Zabbix, system architecture, step‑by‑step implementation, alerting, visualization, and ongoing maintenance to ensure reliable IT operations.
This guide explains Linux syslog fundamentals, common log file locations, their purposes, the roles of syslogd and klogd, how to configure rsyslog, set up log rotation with logrotate, and deploy a centralized log server for multiple hosts.
The article details China's 2024‑2027 Information Standard Construction Action Plan, the launch of synchronized ITU DevOps international and domestic assessments, and how Shanghai Stock Exchange's website and app platform successfully passed both standards, highlighting the significance for national standardization and operational excellence.
From manual server management to automated scripts, AIOps, and ChatOps, this article traces the evolution of IT operations and demonstrates how large language models boost efficiency, enable intelligent assistants, automated diagnostics, and smart log analysis, aiming for rapid fault detection, localization, and resolution.
The article outlines SRE‑based incident mitigation and recovery practices, covering urgent mitigations, impact reduction, key metrics such as TTD, TTR, TBF, and detailed strategies for shortening detection and repair times, preventing fatigue, improving observability, and designing resilient systems.
The Agricultural Bank of China’s Digital Twin Platform passed both the ITU DevOps international standard and the domestic DevOps Level‑3 Continuous Delivery assessment, highlighting China’s push for internationalized information standards and showcasing the broader rollout of synchronized DevOps evaluations across the nation.
The article details China’s 2024‑2027 Information Standard Construction Action Plan, the launch of synchronized ITU DevOps international and domestic assessments, and a case study of Shandong City Commercial Bank Alliance’s successful dual‑certification, highlighting interview insights, performance metrics, and the broader push for standards internationalization.
This article outlines practical principles and communication techniques for assigning responsibility during system failures, emphasizing strategic questioning, ally‑building, moral positioning, and nuanced response methods to protect oneself while ensuring effective incident resolution.
This case study details how the AiFenxi business intelligence platform integrated Apache APISIX as a high‑performance API gateway within Tencent Cloud TKE, addressing latency, scalability, and security challenges, and outlines the architectural changes, deployment steps, and resulting performance improvements.
This article explains why regular disaster role‑playing, systematic testing, and focused responder preparation are essential for building robust incident response capabilities and reducing operational risk in production environments.
This guide outlines essential steps for creating a robust, high‑availability website architecture, covering domain acquisition, DNS management, CDN deployment, image caching, data center selection, monitoring, DDoS mitigation, redundancy, server configuration, database replication, testing environments, security practices, and operational tooling.
This article explains a new visualized full‑chain log tracing solution that organizes business logs by logical flow, dynamically links them during execution, and provides a visual, searchable view of the entire business process, dramatically improving issue localization in large‑scale distributed systems.
This comprehensive guide lists 150 indispensable Linux commands covering file management, system monitoring, networking, user administration, process control, and more, providing clear explanations to help both beginners and experienced administrators efficiently manage Linux environments.
This article outlines a comprehensive approach to improve test environment stability by introducing a trunk‑based environment as the default, detailing solution architecture, various testing scenarios, implementation steps, and monitoring practices to transition from unstable daily environments to a more reliable testing ecosystem.
This article provides a comprehensive guide on building a unified log collection system using Filebeat and Graylog, covering the tools' concepts, configuration files, component functions, Docker deployment, and practical code examples for efficient log monitoring across multiple environments.
This article details how Alipay’s Mantiantianxing platform was designed and built to unify page construction, fine‑grained operation, and data feedback, thereby solving low R&D and operation efficiency, reducing duplication, and enabling rapid, scalable innovation across multiple product front‑ends and back‑ends.
This guide outlines comprehensive principles for generating, using, and cleaning test data across development, performance, and production environments, emphasizing independence, realism, security, proper permission controls, and systematic synchronization to ensure reliable and safe testing processes.
This article examines how cloud computing has become central to enterprise IT architecture, explores its cost governance challenges, outlines industry trends, standards like ITIL and COBIT, and presents practical strategies—including FinOps, multi‑cloud platforms, and sustainable practices—to effectively manage and reduce IT costs.
This article details the evolution of Vivo's CICD artifact management across four stages, explains its core functions such as multi‑type support, unified storage, promotion, security scanning, aging, and permission control, and outlines future directions toward smarter, more integrated, and secure DevOps operations.
This article explains how to resolve Docker image pull failures in China by editing the daemon.json file to add accessible domestic registry mirrors, providing step‑by‑step instructions and a ready‑to‑use mirror list for developers and operators.
This article explores how service availability is quantified, explains the impact of MTBF and MTTR on reliability, and presents concrete operational practices—including redundancy, traffic control, and change‑management techniques—to move systems from basic uptime to true high‑availability levels.
This extensive training program covers everything a data center operations engineer needs—from foundational infrastructure management and server hardware maintenance to advanced network configuration, security hardening, monitoring, fault handling, and practical hands‑on skills for real‑world challenges.
This article presents a comprehensive analysis and engineering of Qunar's flight‑ticket intelligent pre‑warning (Radar) system, covering the business need, value analysis, architectural redesign, feature extraction, indicator classification, accuracy quantification, multi‑algorithm anomaly detection, automatic parameter tuning, observed effects, and future plans to incorporate large‑model techniques.
This guide explains why Dockerhub mirrors stopped working, lists the unavailable and usable registry URLs, and shows step‑by‑step how to configure Docker with multiple mirror sources to ensure reliable image pulls.
With IPv4 address space exhausted and providers beginning to charge for public IPv4 usage, organizations face rising costs and complex migration challenges, prompting a strategic shift toward IPv6 adoption, alternative solutions, or passing expenses to customers, while grappling with ISP support gaps and tooling limitations.
The Shanghai Jiao Tong University mirror announced the shutdown of its Docker Hub accelerator on June 6, prompting users to replace the unavailable address with other domestic mirrors such as NetEase, Alibaba Cloud, Baidu, and Nanjing University to maintain fast container image downloads.
This guide shows how to use df, du, find, and lsof commands to locate large directories, files, and deleted-but-open files that consume disk space, and explains how to adjust reserved filesystem space on Linux.
This article demonstrates how Python can automate common operations tasks such as remote command execution, log file parsing, system monitoring with alerts, batch software deployment, and file backup and recovery, providing code examples using libraries like paramiko, regex, psutil, fabric, and shutil.
This article explains how a simple single‑Tomcat deployment evolves into a multi‑layered load‑balancing architecture using Nginx, gateway authentication, static‑dynamic separation, and finally a combination of LVS and Nginx with DNS and CDN to handle massive traffic efficiently.
This guide explains how to use the journalctl command to view, filter, and manage systemd-journald logs on Linux, covering help options, match expressions, persistent storage, disk usage, vacuuming, time ranges, unit filtering, priority levels, real‑time streaming, output formatting, and kernel log access.
This article compiles several Zhihu answers that trace the historical shift from Windows/IIS to Linux-based servers, highlighting ecosystem dynamics, cost advantages, performance differences, container support, and open‑source adoption that together explain why Linux dominates modern server environments.
The article provides a comprehensive overview of the Python Software Foundation's infrastructure, detailing its team, cloud providers, data centers, and the hosting arrangements for numerous services such as PyPI, docs, bug trackers, and the main Python website.
This article outlines nine crucial microservice monitoring indicators—including request tracing, health checks, throughput, response time, success and error rates, concurrent connections, CPU/memory usage, and resource utilization—to help engineers assess performance and reliability in distributed systems.
This guide details how to configure Linux services for automatic boot startup using systemd (systemctl), the legacy chkconfig method, generic script approaches, and crontab @reboot syntax, plus best‑practice recommendations for production environments.
The author recounts five years of building TinyPilot, detailing revenue growth, product launches, team expansion, operational challenges, cost management, and personal reflections on entrepreneurship, while sharing lessons learned and goals for the coming year.
This article presents ten ready‑to‑use Python scripts that automate common operational tasks such as file backup, scheduled email reminders, web scraping, bulk image renaming, log analysis, folder synchronization, database backup, API monitoring, performance testing, and CI/CD deployment.
This article explains the concept of graceful shutdown, outlines essential steps, examines Kubernetes pod termination and Spring Boot integration with Nacos, and provides practical optimizations—including PreStop hooks, terminationGracePeriod settings, and actuator shutdown—to ensure reliable service termination without data loss.
This article explains the concept of gray (canary) release, why it’s essential for large‑scale architectures, outlines the step‑by‑step workflow, describes common traffic‑splitting strategies, and offers practical tips for monitoring and gradually scaling deployments to ensure system stability.
This guide presents comprehensive principles, best practices, and techniques for designing, deploying, and maintaining stable distributed systems, covering fault tolerance, monitoring, capacity planning, incident response, and operational reliability to help engineers achieve high availability.
These core principles—minimal dependency, weak dependency, distribution, rate limiting, degradable design, balanced risk, fault prevention and isolation, no single point of failure, self‑protection, automatic failover, and retry/idempotency/compensation—guide the design of highly available systems by reducing risk, ensuring redundancy, and protecting services at all layers.
This article demonstrates several efficient Linux command‑line methods—including tail, head, grep, sed, and pagination tools—to quickly pinpoint error entries, view surrounding context, filter by time range, and count occurrences within massive log files.
This article documents how a team reduced the average deployment time of the omega application from 229 seconds to 69.71 seconds—a 69% speed‑up—by analyzing startup logs, removing unused middleware, upgrading libraries, fixing logging configurations, and applying async bean creation and script optimizations.
China’s banks are rapidly adopting DevOps, with CAICT’s maturity model showing China Merchants Bank topping assessments across multiple years, highlighting how standardized DevOps practices boost IT efficiency, product delivery speed, and business satisfaction in the era of digital transformation.
This guide explains how to configure host, network, and default routes on Linux using the route command, covering syntax, option meanings, example commands, and how to view or delete routes for communication across multiple subnets.
This article describes Zhihu's hybrid cloud architecture—including offline, online, and GPU data centers—its self‑built UnionStore cache, the performance and latency challenges faced during large‑scale AI model training, and the subsequent evaluation and migration to Alluxio community and enterprise editions to achieve higher throughput, stability, and lower operational overhead.
This article explains the concept, challenges, step‑by‑step process, organizational and tool requirements, capacity governance, planning, and AI‑driven prediction for full‑link load testing, illustrating how enterprises can ensure system capacity and stability during large‑scale online events.
This article compiles diverse Zhihu answers discussing whether Kubernetes is necessary, weighing its automation benefits and scaling power against configuration complexity, resource costs, and team readiness, while offering concrete kubectl commands and guidance for making an informed adoption decision.
This article details the investigation of sporadic interface timeouts in the Sirius real‑time pricing service, revealing a weekly pattern linked to RAID controller consistency checks that cause IO spikes, logback queue blockage, and ultimately Dubbo client‑side timeouts, and proposes mitigation steps and general performance‑troubleshooting guidelines.
This article explains what a bastion host (jump server) is, why it evolved from traditional jump servers, its core 4A design (authentication, authorization, account, audit), deployment options, common features, authentication methods, and how open‑source and commercial solutions differ, helping organizations improve security and compliance.
The article outlines the DevOps International Standard (ITU‑T Y.3525), its development history, publication, evaluation scheme upgrades, relationship with China’s domestic DevOps standards, and provides a comprehensive overview of industry participation in the DevOps capability maturity model as of April 2024.
The article details how China’s Agricultural Bank of China has leveraged the CAICT DevOps Capability Maturity Model to achieve extensive assessments across dozens of projects, illustrating the bank’s digital transformation, security improvements, and operational benefits within the broader national push toward intelligent, networked enterprises.
