This article examines how Suning leveraged Robotic Process Automation to dramatically boost employee productivity, cut repetitive work, and achieve massive efficiency gains across finance, HR, and retail operations, illustrating the broader potential of RPA for modern enterprises.
Learn how to install and launch Alibaba’s open‑source Arthas tool, explore its dashboard, run essential commands like thread and watch, and see a practical Java demo, all in a concise step‑by‑step tutorial that gets you debugging Java processes fast.
This article walks through the challenges of load‑testing a phone‑binding feature that swaps between two number prefixes while preserving the original UID‑derived number, detailing validation rules, a configurable solution, test design, and the full Groovy‑based load‑test script.
This article provides a comprehensive overview of DevOps concepts, including definitions of CI, CD, continuous deployment, version control, tooling, implementation steps, benefits, and distinctions from Agile and Lean IT, offering guidance for effective adoption and interview preparation.
This comprehensive guide explains why monitoring is vital for operations, outlines monitoring objectives, methods, core processes, and a detailed overview of open‑source and commercial tools—including Zabbix, Open‑Falcon, and MRTG—while covering metrics, alert handling, and interview preparation for effective system monitoring.
In this interview, senior DBA Ge Haoqiang from Tiancheng Financial discusses the scale of their database clusters, the efficiency gains from automation, DevOps culture, language choices, and how they adapt to new database features, offering insights into modern database operations automation.
This guide walks you through ten practical steps—including switching to local yum mirrors, installing key packages, disabling SELinux and the firewall, trimming startup services, tightening SSH settings, syncing time, raising file descriptor limits, and disabling ping—to boost the performance and security of a freshly installed Linux server.
This article walks through a real‑world ZooKeeper incident where a five‑node cluster showed two leaders, explains the election rules, analyzes log and configuration mismatches, assesses business impact, and provides a step‑by‑step recovery plan to restore normal service without data loss.
Experienced developers can often identify performance bottlenecks simply by reviewing code implementations, configuration settings such as timeouts, intervals, database and Redis parameters, as well as service monitoring data, container and JVM configurations, allowing them to avoid unnecessary test scripts and code changes.
This article explains common Linux shell pitfalls—empty variables, spaces in paths, special characters, and failed cd commands—that can cause accidental file deletion, and provides concrete code examples and best‑practice solutions to avoid such disasters.
This article summarizes Facebook's holistic configuration management practices, presenting cultural influences, storage growth, size distribution, update frequency, change magnitude, and author collaboration statistics, while linking to a series of translated articles that explore tools such as Configerator, GateKeeper, and MobileConfig.
This guide explains fault management fundamentals—from ITIL‑based definitions and why it matters, to fault level classification, monitoring, emergency response, recovery, post‑mortem analysis, continuous improvement, and practical advice for practitioners—providing a comprehensive, actionable framework for reliable operations.
The article examines Spotify’s scaled agile model, detailing its organizational units—Squads, Tribes, Chapters, and Guilds—along with their characteristics, governance, dependency management, and comparison to other large‑scale agile frameworks such as SAFe, LeSS, and Scrum@Scale.
The article explains how traditional IT silos hinder rapid incident response, outlines common symptoms of poorly managed applications, and argues that adopting DevOps—supported by cloud‑native infrastructure, automation, and shared responsibility—delivers higher transparency, employee autonomy, operational quality, and customer satisfaction.
This article explains how Slack’s engineering team designs a multi‑stage deployment pipeline—including release branches, staging, dogfood, canary, and percentage rollouts—while emphasizing rapid iteration, visibility, and reliability through fast and atomic deployment mechanisms.
The article examines how Google, eBay, Twitter and Amazon evolved their massive systems into multi‑language microservice ecosystems, highlighting the organic growth of services, incentive‑driven design, standards emergence, service ownership, operational practices, and anti‑patterns for building and scaling cloud‑native architectures.
This article explains Nginx's built‑in failure retry mechanism, detailing how fails are defined via proxy_next_upstream, the default and custom error types, retry limits, backup servers, and common pitfalls with configuration examples and practical scenarios.
This tutorial explains how to install Supervisor on CentOS and Ubuntu, configure its main and program-specific files, and use it to monitor a continuously running Python script, automatically restarting the script if it crashes or is killed.
This article analyzes the rapid construction of Huoshenshan and Leishenshan hospitals, using it as a case study to compare waterfall, spiral, iterative, and Scrum development models, discuss the shift toward agile practices, and outline quality‑built operations principles for complex, time‑critical projects.
This article provides a thorough overview of planning, provisioning, and managing online production environments—including user sizing, bandwidth estimation, database design, OS versus container deployment, middleware selection, security, monitoring, SSH shortcuts, file transfer tools, automation scripts, Docker setup, and log viewing techniques—aimed at giving developers a complete operational perspective.
This article explains why nohup cannot monitor scripts, introduces Supervisor as a Python‑based process monitor, shows how to install it on CentOS, Ubuntu, and via pip, details the supervisord.conf and program .ini configurations, demonstrates a sample Python script, and outlines common commands for managing and restarting services.
The article outlines the Sigma Quality Management Platform’s event management journey across three development stages—establishing basic standards, expanding processes and channels, and achieving mature, integrated governance—while highlighting current challenges, continuous standard refinement, efficiency gains, and practical implementation details.
This article presents a detailed DevOps case study of the Huoshenshan and Leishenshan hospital construction, outlining a ten‑day timeline of parallel and serial value‑streams, highlighting extreme efficiency, short lead times, and a high proportion of value‑added activities across infrastructure, power, communications, medical systems, and IT equipment.
This article presents a comprehensive overview of the 14 most popular CI/CD tools, describing their main functionalities, licensing models, and official websites to help teams choose the most suitable solution for fast and reliable software delivery.
This guide reviews the most trustworthy international and Chinese software outsourcing platforms, outlines the essential skills for foreign contracts, highlights key features of each service, and offers practical advice on managing client expectations, expanding your freelance channels, and building a personal brand for long‑term success.
This guide explains three practical methods for gathering Nginx access and error logs—directly with Filebeat to Elasticsearch, via Filebeat to Logstash then Elasticsearch, and using rsyslog to forward logs to Logstash—complete with configuration snippets and visualization steps in Kibana.
The article examines Facebook’s massive, real‑time configuration management system, describing its rapid change frequency, the engineering challenges of configuration sprawl, authoring, validation, dependency handling, and the scalable, reliable distribution mechanisms that keep billions of devices and servers consistently updated.
This guide walks you through practical Linux command-line techniques for system administrators, covering concise xargs usage, background execution with nohup, process sorting with ps, multi‑log viewing via multitail, network diagnostics using ping, netstat, top‑IP analysis, and secure SSH port forwarding.
This article explains how well‑designed product categories serve as the backbone of an e‑commerce platform, covering the concepts of backend and frontend categories, the construction of category trees, and various mapping strategies that help both users find items quickly and operators manage large inventories efficiently.
This article reviews the rapid ten‑day construction of Huoshenshan and Leishenshan hospitals from a DevOps perspective, highlighting how a ‘small team, big backend’ organizational model—mirroring agile and networked structures—enabled efficient coordination across multiple industries and swift project delivery.
This article breaks down the diverse career paths within Linux, detailing the core responsibilities of operations roles—ensuring stable services and data security—and the various development tracks, from application and embedded programming to low‑level kernel and driver engineering.
To keep systems highly available under sudden traffic spikes, developers employ three core strategies—rate limiting, circuit breaking, and service degradation—each controlling request flow, isolating failures, and gracefully reducing functionality to maintain stability, with practical examples and algorithmic approaches explained.
Nightingale, an open‑source enterprise monitoring platform from Didi, combines cloud‑native design, high availability, flexible plugins, and a powerful object‑tree navigation to meet the monitoring needs of both small clusters and massive deployments, while extending and improving upon Open‑Falcon.
This article outlines a comprehensive methodology for migrating small‑mainframe platforms—including hardware assessment, solution design, implementation steps, risk evaluation, and three common data‑migration techniques—so that businesses can safely transition workloads to modern x86 servers while preserving data integrity and service continuity.
Zhejiang Mobile’s IT Operations team announced a strategic shift from reactive ticket‑driven maintenance to a proactive, AI‑powered AIOpsDev model, establishing new departments, adopting SRE practices, and leveraging cloud‑native technologies to dramatically improve efficiency, reliability, and digital transformation.
This article explains the fundamentals of operations and game operations, outlines server management strategies for hundreds of machines, compares RAID levels, evaluates load balancers (LVS, Nginx, HAProxy), discusses proxy servers (Squid, Varnish, Nginx), and clarifies middleware, JDK, Tomcat ports, and CDN concepts.
This guide walks you through installing Mailx on a Linux server, fixing compilation issues, configuring SMTP settings, testing email delivery, and building a keyword‑based log‑monitoring script that triggers alerts via email.
After an alert showed a data platform server’s CPU usage soaring to 98.94%, this article walks through a systematic investigation—from spotting the high‑load process with top, tracing the offending Java thread using pwdx and jstack, to optimizing the time‑conversion utility that caused the overload.
This guide presents a comprehensive cheat sheet of essential Linux commands, covering online queries, file and directory management, content viewing, compression, information display, file searching, user and permission handling, network operations, disk and filesystem tasks, system monitoring, shutdown/reboot procedures, and process management.
This case study examines JD.com’s evolution into a technology‑driven enterprise, detailing its corporate culture, the “ABCDE” technology strategy, the implementation of DevOps and agile practices through the CALMS framework, and how unified continuous‑delivery platforms and operational metrics have driven growth, efficiency, and pandemic response.
Load testing, which simulates thousands of real users, is crucial for uncovering performance bottlenecks that functional tests miss, and integrating automated load tests into every CI cycle helps prevent crashes, protect revenue, and ensure reliable software delivery.
This article explains why modern services depend on highly available, scalable monitoring, outlines a systematic way to assess and improve monitoring capabilities using open‑source tools and the DevOps Capability Maturity Model, and details concrete improvement points across data collection, management, and application.
This article explains the anti‑fragility concept, illustrates how cloud‑based systems become increasingly vulnerable to unexpected events, and offers practical strategies—including risk reduction, choice diversification, proactive experimentation, and biologically inspired resilience—to transform operations and turn shocks into opportunities.
Alibaba Entertainment’s Big Drama Assurance framework applies automated and manual quality checks across production, operations, rights, playback, online monitoring, and emergency response, using a unified platform that detects and resolves issues before and after launch to protect revenue, uphold paid‑member rights, and ensure a seamless viewing experience.
This article recounts how a pandemic‑era live‑streaming service rapidly expanded from ten‑thousand to one‑million concurrent viewers within three days by analyzing the pre‑deployment assessment, container‑based scaling, monitoring, emergency response plans, and post‑launch optimizations.
This article outlines a step‑by‑step procedure for safely taking an Elasticsearch node offline—checking master‑eligible settings, adjusting minimum_master_nodes, excluding the node from routing, waiting for shard relocation, stopping the service, and restoring the cluster routing—ensuring no data loss or service interruption.
The article presents a detailed Google‑derived post‑mortem checklist covering event data collection, root‑cause analysis, lessons learned, actionable improvement items, and review procedures to ensure systematic, non‑blame‑focused incident handling.
This guide compiles the most essential Linux commands for directory handling, file manipulation, text processing, compression, system monitoring, networking, and routine administration, providing concise examples and practical tips to help beginners and seasoned users alike navigate and manage Unix-like environments efficiently.
This guide explains the concept, design, and step‑by‑step implementation of a service tree in a CMDB, showing how to map departments, products, and services to resources for better visibility, cost tracking, and operational control.
On Feb 23, Weimeng suffered a large‑scale system outage caused by a core operations staff mistakenly deleting production databases, prompting a multi‑day recovery effort with Tencent Cloud support; the article examines the incident’s background, historical parallels, crisis response, and broader operational insights for DevOps and reliability engineering.
Youku’s unified playback testing platform consolidates a modular automation framework, a comprehensive service chain, and a layered platform ecosystem to standardize workflows, support multiple device types, and provide transparent, real‑time monitoring, thereby reducing development complexity and paving the way for intelligent case recommendation and dynamic verification.
This article introduces several MySQL performance‑tuning utilities—including mysqltuner.pl, tuning‑primer.sh, pt‑variable‑advisor, and pt‑query‑digest—explains how to download, install, run them, and interpret their reports to identify configuration issues and optimize database performance.
This article introduces the free, open‑source kmdr CLI tool, explains how to install it with Node.js or use the web demo, and demonstrates its ability to break down complex Linux commands into readable modules, covering a wide range of common utilities.
This guide explains typical Linux terminal pitfalls such as incomplete commands, filename typos, and wrong directories, and provides practical shortcuts like tab completion, history navigation, and quick command substitution to boost productivity for developers and system operators.
Facing the explosion of 5G traffic and billions of daily call records, Jiangsu Mobile’s IT operations team adopted Prometheus as the core time‑series database, designing a high‑availability, low‑latency monitoring platform that captures, stores, visualizes and predicts performance metrics across their massive billing system.
The article analyzes the recent Weimob data‑deletion incident, explaining why recovery is complex, comparing on‑premise, hybrid, and full‑cloud database architectures, and outlining the technical steps and obstacles involved in restoring massive lost data.
During the COVID‑19 pandemic, the mall development team adopted a comprehensive DevOps toolchain—including JIRA, GitLab, Jenkins, Sonar, Docker, and Wiki—to enable end‑to‑end remote development, automated pipelines, and continuous delivery, resulting in improved efficiency, reliable releases, and seamless collaboration.
This article introduces Jenkins infrastructure setup, including installation via Ansible, Puppet, Chef or Docker, outlines management tools such as CLI, REST API, python‑jenkins and Jenkins‑client, describes project creation plugins like Job DSL, Job Builder and Jenkinsfile, and explains system configuration using Groovy scripts and the Configuration‑as‑Code plugin.
After a core operations staff accidentally deleted Weimeng’s production database in February, the platform endured a multi‑day outage, prompting a transparent crisis response, extensive Tencent Cloud support, and a deep analysis of recovery challenges, operational best practices, and the broader lessons for modern DevOps teams.
The article analyzes the recent Weimeng database deletion incident, explains why recovery took 36 hours, and provides practical guidance on backup practices, minimal‑privilege management, and cloud‑based disaster recovery to prevent similar data loss in small and large organizations.
A Chinese SaaS provider suffered a catastrophic data loss when a core operations employee maliciously deleted its production databases, prompting emergency repairs, police involvement, and a multi‑day recovery effort that exposed critical gaps in permission management and backup strategies.
This article explains why monitoring is essential for operations, reviews popular monitoring tools such as Cacti, Nagios, Zabbix, Ganglia, Centreon, Prometheus and Grafana, outlines a six‑layer unified monitoring platform architecture, offers selection guidance for different enterprise sizes, and shares evolution lessons from small to large scale deployments.
This article details how JD.com’s order center migrated its Elasticsearch cluster through multiple architectural stages—initial deployment, isolation, replica tuning, master‑slave adjustments, and real‑time dual‑cluster backup—while addressing data synchronization, scaling, and performance pitfalls to achieve high availability and query stability.
The article details how QQ migrated all of its services to Tencent Cloud, describing the business scenarios, migration timeline, technical approaches, challenges such as cost, security, and performance, and the operational and architectural lessons gained from the full cloud transition.
This guide walks through setting up ELK to collect, parse, and visualize Nginx access logs, covering Logstash configuration, Grok patterns, GeoIP enrichment, Elasticsearch indexing, and Nginx proxy with basic authentication, enabling real-time log analysis and dashboard creation.
The author recounts his first year at Alibaba, detailing the transition from a solo newcomer to leading the OceanBase cloud platform, establishing large‑scale real‑time monitoring with JStorm, evolving team processes, and adapting to Alibaba’s fast‑paced, iterative culture.
This article explains why monitoring is essential for operations, outlines the four‑layer monitoring standard (infrastructure, liveliness, performance, business), breaks down functional modules and data flows, and showcases JD Cloud's practical design, alarm‑convergence project, and future AI‑driven observability directions.
This guide walks through setting up Crowd 3.7.1 with Jenkins 2.220 by creating user directories, groups, and applications in Crowd, then configuring Jenkins to use the Crowd2 plugin for global security and login, including screenshots for each step.
The article explains how focusing on a single critical point—such as the deployment stage—can dramatically accelerate an organization’s end‑to‑end DevOps transformation, illustrated with JD.com’s journey from manual releases to an automated, high‑efficiency continuous delivery platform.
Didi's National Carpool Day on Dec 3 2019 attracted 3.1M passengers; stability ensured via six pillars: organized task force, capacity forecasting and rapid container scaling, comprehensive monitoring with fire‑fighting map, robust contingency platform, strict process standards, and coordinated third‑party preparation.
This article chronicles the design, evolution, and performance evaluation of Bond, a distributed‑lock SDK used internally at Youzan, covering its multi‑phase roadmap, storage choices, timeout‑retry strategies, lock‑TTL recommendations, and practical pitfalls for reliable operations.
This article outlines the design, architecture, and key features of an IBPM workflow platform, detailing its background, core concepts, design principles, extensibility, and future direction for creating a configurable, integrated, and intelligent business process management solution.
This article introduces OpenTSDB, a highly scalable time‑series monitoring system built on HBase, explains its architecture, demonstrates how it solves common monitoring challenges, and shows practical usage examples including data modeling, collector integration, and real‑world deployment insights.
During the 2020 Chinese New Year lockdown, a travel platform mobilized its development, product, and operations teams to rapidly build refund systems, coordinate with suppliers, and ensure continuous online services, showcasing a user‑first, cross‑functional emergency strategy that balanced technical delivery with intense customer pressure.
This article examines the inherent tension between operations and development, explains Google’s error‑budget and SLO approach, and shares practical DevOps, on‑call, automation, and talent strategies that help ops teams improve efficiency while maintaining product reliability.
In early 2020, a small team of Chinese developers swiftly created a COVID-19 travel companion query tool—designing, coding, and deploying a searchable web service within a single day, then scaling it to millions of users using CDN, static site generation, and cloud storage, while emphasizing data accuracy and rapid response.
The article explains the origins, metrics, and test suites of TPC and SPEC benchmarks, describes their various models for CPU, web, HPC and storage performance, shows how to query official results, and notes a promotional bundle of technical e‑books.
Tencent’s QQ service migrated over a million servers to public cloud, detailing comprehensive planning, phased execution, and solutions to security, dependency, disaster recovery, and gray‑scale challenges, while highlighting infrastructure upgrades, database migration, cloud‑native tools, and operational transformations that ensured zero user impact.
This article explains IBM WebSphere Application Server's memory architecture, common causes of Java OutOfMemoryError in WAS, and provides a step‑by‑step guide—including log collection, heap analysis, and preventive measures—to diagnose, resolve, and avoid memory overflow incidents in production environments.
The article explains how a strong, transparent enterprise culture—characterized by trust, respect, and accountability—is the foundational prerequisite for successful DevOps transformation, illustrating key concepts, cultural barriers, and real‑world case studies that show why cultural change must precede technical adoption.
This article details how Ping An Bank tackled rapid growth and complex regulatory demands by creating an automated operations middle‑platform, designing a CMDB with data‑closure and subscription mechanisms, and implementing orchestration, gray‑scale deployment, and high‑risk detection to achieve resilient, scalable infrastructure management.
This guide walks you through preparing scripts, uploading them, making them executable, and creating Jenkins jobs for each module of the multi‑module Mall project to achieve fully automated deployment using free‑style projects and SSH execution.
This article outlines how a major state‑owned commercial bank designed and implemented a DevOps framework—including goals, architecture, the three main pillars of tools, processes, and standards—and shares practical insights, maturity assessment methods, and Q&A for large‑scale financial institutions.
This article examines a real‑world group‑buy scenario, explains why timeout‑prone interfaces need robust retry and idempotency handling, distinguishes read and write timeouts, outlines key idempotency practices for services and messages, and introduces Guava‑retrying and Spring‑retry as elegant solutions.
This article outlines a systematic approach to dependency governance in high‑traffic backend services, covering service classification, rate limiting, Dubbo, HTTP, database, and message‑queue management to enhance availability, reduce failure impact, and improve overall system stability.
This article examines why Java applications experience high CPU usage, covering infinite loops, frequent Young GC, thread count and state, user‑space versus kernel‑space metrics, and provides a step‑by‑step troubleshooting guide illustrated with a real incident.
This guide explains Linux package naming conventions, how to inspect binary dependencies and installed libraries, and provides a comprehensive collection of RPM and YUM commands—including installation, query, verification, removal, and repository configuration—to help administrators manage software efficiently.
The QA team delivered a seamless, globally stable Double 11 “Cat Night” live stream across three apps and dozens of devices by applying client‑ and server‑side stability measures, international latency simulation, IPv6 support, cost‑effective CDN strategies, full‑chain monitoring, and automated asset‑loss safeguards, achieving zero financial loss.
This article explains the origins of Site Reliability Engineering (SRE), outlines the responsibilities of SRE teams, and details Alibaba Cloud’s ECS SRE practices—including capacity planning, performance optimization, full‑stack stability governance, automated release pipelines, on‑call processes, and the core principles and mindset that guide modern SRE work.
This article explains why measurement is essential for management, outlines a step‑by‑step process for collecting and analyzing efficiency metrics, and shows how to turn data‑driven insights into concrete conclusions and actionable improvement plans for software projects.
Implementing an effective CI/CD pipeline involves understanding continuous integration, delivery, and deployment, recognizing their benefits such as faster feedback and early error detection, and following key stages—from commit and build to testing and production deployment—while selecting appropriate tools and practices to streamline software delivery.
The 2019 Enterprise IT Operations Whitepaper, released at the national Operations Conference, systematically examines the definition, value, key capabilities, industry applications, challenges, and future trends of IT operations across telecom, finance, Internet, and manufacturing sectors.
This article explains how focusing on three key questions during incident post‑mortems, balancing business speed with system stability, and establishing clear SLOs can turn failures into actionable improvements and better fault‑tolerance strategies.
This article describes Qunar Ticket’s comprehensive test‑environment governance framework, including the “Mirror‑Inspect” monitoring service, configuration and data synchronization strategies, and automated allocation management, highlighting how these practices reduced environment‑related project delays from up to 20% to below 8%.
At the 2019 Operations Conference in Beijing, China Telecom’s R&D leader detailed the company’s transformation journey, the DICT capability center’s strategy, the Biying cloud platform, and the implementation of an integrated DevOps platform that streamlines end‑to‑end software delivery using containers, CI and security automation.
The article recounts Jiangsu Telecom’s successful Level‑3 DevOps continuous delivery assessment at the 2019 Beijing Operations Conference, highlighting the role of standardization and tooling, sharing interview insights on the intelligent pre‑processing system, and outlining the broader DevOps standard ecosystem in China.
CITIC Bank’s software development center shares how three flagship projects passed the level‑3 DevOps continuous‑delivery assessment, revealing the role of standardization, tool empowerment, agile practices, and container‑based pipelines in accelerating delivery and boosting team morale.
This guide explains the background, key features, architecture, and step‑by‑step deployment of Thanos—including Sidecar, Store, Query, Compact, Bucket, Rule, and Check components—to provide a unified, high‑availability Prometheus monitoring view with unlimited historical data storage using object storage.
This project addresses challenges in brand advertising testing by implementing automated testing, monitoring, and data construction solutions, significantly improving efficiency, reducing manual effort, and enhancing product quality through real-time issue detection and resolution.
This article explains the evolution from traditional DevOps to DevTestOps, detailing continuous testing, the benefits of integrating automated testing into DevOps pipelines, practical implementation steps, and why organizations should adopt DevTestOps to enhance software quality and delivery speed.
