This comprehensive guide outlines sixteen practical steps—from initial communication with developers to capacity planning and incident response—to help engineers efficiently assume ownership of a new business’s operations while ensuring stability, security, and cost‑effectiveness.
The article describes how Dada‑JD Daojia tackled operational bottlenecks by introducing standards, automating processes, building a public‑cloud CMDB, and implementing self‑service code release, reducing a multi‑machine scaling operation from 18 minutes to about five minutes during major sales events.
The article introduces the ZhiYun Job Platform, detailing its evolution from basic tool construction to advanced orchestration and API integration, highlighting how it standardizes, automates, and secures repetitive operational tasks for enterprises across cloud environments.
This article summarizes OPPO's rapid growth of its big‑data platform, detailing the three‑layer architecture, the evolution from Flume‑Kafka to NiFi for data ingestion, the upgrade of the OFlow task scheduler, comprehensive monitoring of data, resources and task SLA, and the development of a self‑service analytics tool called InnerEye to ensure stability, efficiency, and security.
This article explains how to build a highly available Redis service using Sentinel, discusses failure scenarios, compares single‑instance, master‑slave, and multi‑Sentinel architectures, and provides practical guidance on deployment, VIP handling, and operational considerations.
This guide walks you through a systematic, step‑by‑step process for quickly identifying the root cause of a server outage, covering everything from gathering context and checking who is logged in to inspecting processes, network services, hardware, I/O performance, filesystem mounts, and relevant logs.
This article details JD Logistics' warehouse management system database architecture, the shift between local and centralized deployments, and how the UDBA automation platform, performance tuning, fault‑self‑healing, data archiving, and MySQL upgrades together ensure high performance and high availability across thousands of warehouses.
Netflix’s Edge Engineering team shares how adopting a full‑cycle developer model—where engineers own design, development, testing, deployment, operations, and support—reduces hand‑off delays, improves feedback loops, and scales productivity across the entire software lifecycle.
This article introduces Ctrip's AIOps journey, explaining the AI‑driven operations concept, showcasing typical use cases such as anomaly detection, intelligent fault diagnosis, and resource utilization improvement, and detailing the underlying statistical and machine‑learning algorithms that enable these capabilities.
This article outlines the evolution of financial‑grade cloud native architecture, describing its origins, key principles, incremental delivery, sustainable innovation, and evolutionary planning, while addressing scalability, disaster‑recovery, distributed‑transaction, and elastic resource challenges with practical Ant Financial case studies.
This article examines how DevOps emerged from the merging of development and operations roles, explores automation practices in small and large teams, outlines the three-step DevOps workflow, and discusses the cultural and organizational challenges of adopting DevOps at scale.
Tencent Cloud Database’s massive‑operation strategy combines a dedicated architect team, a three‑layer automated platform for resource, task and health management, and AI‑driven intelligent services that customize workloads, automate tuning, and enable proactive scaling and self‑healing across hundreds of thousands of instances.
This article shares the design and implementation of a lightweight, robust, and low‑intrusion monitoring management system for microservice traffic, detailing data collection via client filters, Redis‑based structured storage, alerting, rate‑limiting, degradation, and authorization mechanisms, and discusses performance optimizations and future improvements.
This guide explains how to create a new view in Jenkins, configure its settings, and modify the view later through the edit interface, providing step‑by‑step instructions with illustrative screenshots for effective job organization.
This guide explains the principles behind RabbitMQ clustering, shows how metadata synchronization works, compares design choices, and provides step‑by‑step instructions—including component installation, node configuration, HAProxy load‑balancing setup, and a sample architecture diagram—to create a reliable, scalable RabbitMQ cluster for production use.
The article examines Ceph’s claimed infinite scalability, cost advantages, and operational stability from an SRE perspective, comparing it with centralized systems like HDFS, and reveals practical challenges such as expansion granularity, crushmap rebalancing, utilization limits, and maintenance overhead.
This article walks through a practical Linux performance investigation, showing how to use the top command to pinpoint high‑CPU processes, examine thread details, convert thread IDs, analyze thread dumps for lock contention, and interpret key top output fields for effective troubleshooting.
This article explains how QQ’s operations team designed a multi‑region, set‑based deployment architecture, tackled data synchronization, employed sharding strategies, and implemented flexible scheduling policies to ensure high availability and rapid disaster recovery for hundreds of millions of users.
The article examines how small, workshop‑style development teams blur and eventually eliminate traditional roles such as full‑stack engineers, DevOps practitioners, and DBAs, illustrating the shift from rigid role separation to overlapping responsibilities driven by speed, resource constraints, and modern tooling.
This tutorial walks you through preparing a CentOS 7.4 system, installing MariaDB, configuring Zabbix 3.4.6 (including repository setup, database creation, service startup, PHP timezone adjustment, and web UI deployment), and verifies the monitoring platform is fully operational.
This talk details SF Express’s journey from heterogeneous legacy databases to standardized open‑source, distributed architectures and intelligent operations, covering standardization, migration to open‑source, scaling with Mycat, automated resource pooling, and the ThinkDB platform that drives proactive, automated DBA workflows.
Zou Hui explained Tencent Hub’s end‑to‑end DevOps platform, detailing how clarified, automated workflows—spanning code development, building, release, containerized plugins, and a multi‑level artifact registry—enable balanced quality and speed while supporting flexible, parallel execution and comprehensive permission‑controlled management across diverse deployment scenarios.
The QInfrarch special session of the 2018 Qunar Technology Carnival gathered a packed audience on May 27, featuring multiple technical talks on real‑time push architecture, IDC networking, ticket search, decentralization, multi‑datacenter redundancy, and fault‑injection platforms, followed by lively Q&A, networking, and enthusiastic follow‑up requests.
The article explains JD’s Woodpecker monitoring system, detailing its architecture, functional and performance checks, use of headless Chrome and Puppeteer, scheduling and alert modules, and how it efficiently detects and resolves thousands of daily e‑commerce activity issues.
This article outlines guiding principles, high‑availability strategies, and high‑concurrency techniques—covering stateless design, resource isolation, quota management, monitoring, degradation, rollback, and scaling—to help engineers build resilient, scalable systems while balancing cost and performance.
Google’s technical infrastructure—supporting services like Search, Gmail, G Suite, and GCP—employs layered physical, hardware, software, and operational security measures, including biometric access, custom secure chips, encrypted boot, service isolation, identity management, and robust DoS defenses to protect data and operations worldwide.
This article explains Alibaba's GOC‑driven operation‑assurance solution for new retail, covering the sector's evolution, unique reliability challenges, a four‑pillar support framework—including high‑availability, mobile ops, emergency response, and change control—and real‑world best practices from Hema Fresh.
This comprehensive guide explains how to monitor and tune service performance by examining CPU load, system and JVM memory usage, buffer/cache concepts, key performance metrics such as response time, throughput, QPS, and provides essential Linux tools and commands for effective operations management.
This guide walks Linux operators through practical uses of xargs, background execution with nohup, memory and CPU process ranking, multitail log aggregation, continuous ping logging, TCP state inspection, top‑IP discovery, and SSH port forwarding, each illustrated with real commands and output screenshots.
This article explores anti‑fragility theory and real‑world DevOps practices such as Phoenix Server, Chaos Monkey, GameDays, and blameless post‑mortems, showing how organizations can transform inevitable failures into opportunities for resilience and continuous improvement.
The talk details Ele.me’s rapid growth from 300k to over 10 million daily orders, describing the challenges of high‑concurrency, multi‑active micro‑service architecture, IDC planning, database refactoring, disaster‑recovery, NOC operations, and the systematic processes that enabled stable, scalable delivery across two data centers.
This article details eBay's 11‑year journey in automating system‑wide patch deployment across Windows and Linux servers, covering challenges, process evolution, security considerations, testing strategies, and future plans for kernel hot‑patching and container‑based updates.
This article examines the growing challenges of system availability in modern operations, explains the concept of availability and the N‑nine metric, introduces Business Continuity Management and Google SRE approaches, and provides concrete technical and managerial methods—including architecture standardization, scaling strategies, tooling, emergency drills, and incident‑centralized management—to improve operational reliability.
This article presents twenty practical principles for building and maintaining an effective, business‑oriented operations automation system, covering mindset, architecture, design, tooling, team composition, data handling, security, and implementation best practices for modern enterprises.
Learn a systematic Linux troubleshooting workflow and detailed solutions for six typical operational problems—including filesystem corruption, disk space exhaustion, inode depletion, lingering deleted files, too‑many‑open‑files errors, and read‑only filesystem issues—complete with command‑line examples and step‑by‑step fixes.
This guide walks you through editing the network interface file on a master node, replicating the settings on slave nodes, and verifying connectivity with ping commands, providing a complete step-by-step process to configure a clustered virtual machine network on Linux.
The article explains the unique challenges of monitoring and alerting in large‑scale big‑data environments, outlines the evolution and architecture of such systems, and provides detailed guidance on data collection, time‑series storage, rule definition, and alert actions for reliable operations.
This talk outlines the five major challenges faced by Tencent's SNG component operations—geographic distribution, HTTPS certificate management, massive device failures, long‑term maintenance, and large‑scale scaling—and describes the underlying architecture, operational principles, and practical techniques used to automate and reliably support millions of users during peak events.
This guide explains step‑by‑step how to configure Slack as a real‑time log channel by creating a workspace, setting up a channel, generating an incoming webhook URL, and posting JSON log messages via HTTP so you can monitor application logs instantly.
This article shares Tencent SNG's practical experience in bandwidth cost optimization, detailing how advanced image and video compression techniques, adaptive resolution, AI‑driven super‑resolution, and efficient transcoding pipelines reduced over a billion yuan in cash flow while preserving user experience and product quality.
This article provides a detailed, step‑by‑step overview of how startups can design, select, and integrate languages, components, processes, and systems—including databases, RPC frameworks, monitoring, CI/CD, and cloud services—to construct a robust, scalable backend architecture that balances cost, performance, and operational maturity.
Alibaba’s experts share how they boost release speed and stability for trillion‑dollar transactions by combining P2P file distribution, automated monitoring, AI‑driven anomaly detection, and an unattended release system that automatically pauses risky deployments, reducing faults while handling massive e‑commerce workloads.
This article analyzes the rapid growth challenges of Meituan‑Dianping's core payment flow, explains key availability metrics such as MTBF and MTTR, and presents a comprehensive set of architectural, operational, and tooling strategies—including dependency decoupling, timeout tuning, circuit breaking, and full‑link stress testing—to achieve stable, fault‑tolerant transactions.
This article outlines Didi's MySQL database architecture, the challenges of managing thousands of instances, and the step‑by‑step automation framework—including dbproxy, high‑availability, backup, monitoring, and deployment modules—that reduces manual DBA work by over 70%.
This guide explains how to centralize duplicated VSTS deployment parameters and PowerShell scripts by creating Library variable groups, setting their security, and referencing them in Release definitions to simplify configuration management across multiple projects.
This article outlines Alibaba's DevOps transformation, describing the three operational stages, four foundations of automated operations, CI/CD implementation, essential system characteristics, development‑defined operations, config‑driven changes, and the tools that enable high‑availability, efficiency, and scalability.
This article shares practical guidelines for selecting suitable open‑source projects, safely integrating them into production, and extending them when needed, while highlighting common pitfalls, maturity checks, operational considerations, and risk‑mitigation strategies for developers.
This guide explains how to install Ansible via yum or pip, outlines its directory layout, describes host inventory setup, details SSH key configuration for password‑less access, and introduces common modules such as ping for basic connectivity testing.
This article explains the most common Zabbix alert methods—including email, phone call, SMS, WeChat, and other channels—detailing their implementation ideas, required parameters, action configurations, and providing Python code snippets to retrieve performance graphs and send notifications.
This article introduces the ELK stack—Elasticsearch, Logstash, and Kibana—explaining its core components, architecture, comparison with databases and grep, typical use cases across security, networking, and application monitoring, deployment considerations, challenges, SaaS prospects, and recommended learning resources.
This article compares three popular service discovery solutions—Zookeeper, etcd, and Consul—detailing their architectures, features, integration methods, strengths, and weaknesses, and concludes with a recommendation for using Consul in multi‑data‑center environments while noting its real‑time notification limitations.
An in‑depth look at Bilibili’s multi‑layer monitoring overhaul, detailing the shift from a monolithic Zabbix setup to micro‑service‑based ELK, Dapper, Misaka, Traceon and Lancer systems, and how layered observability improves fault detection across business, application, and infrastructure levels.
This article introduces a curated set of practical Linux operations tools—including Nethogs, IOZone, IOTop, IPtraf, IFTop, Fail2ban, Tmux, NMON, MultiTail, NMap, and Httperf—detailing their purpose, installation steps, key command‑line options, and usage examples to help system administrators monitor bandwidth, disk I/O, processes, logs, and security on Linux servers.
This article explains why proper logging is crucial for Java backend maintenance, defines useful log levels, outlines team rules and best‑practice implementations—including traceId usage, log file organization, and real‑time monitoring—to enable fast issue diagnosis and improve overall engineering quality.
The article outlines the seven essential competencies—flexibility, security, collaboration, scripting, decision‑making, infrastructure knowledge, and soft skills—that DevOps engineers must master to bridge development and operations, accelerate delivery, and maintain secure, reliable systems.
This article explains the motivation behind the growing gap between developers and operations, introduces Tencent Cloud's AI‑driven intelligent operations robot, outlines its core features, typical use cases, and dives into the retrieval‑based dialogue system and matching models that enable natural‑language interactions.
This article explains why X86 bare‑metal services are essential for high‑performance, security‑critical workloads, describes their architecture and management processes, and outlines the steps—standardization, automation, service‑orientation, and self‑service—used by Hengfeng Bank to implement and operate them.
This article examines why DevOps transformations often fail, outlines five common misconceptions and five proven practices, and provides concrete, data‑driven recommendations—including cultural evolution, small‑batch work, feedback loops, value‑stream collaboration, and waste elimination—to help organizations achieve faster, safer, and more reliable software delivery.
This article describes how Microsoft’s global development platform team built a highly available, automated DevOps pipeline on Azure, detailing the engineering system, deployment process, telemetry collection, alert handling, security practices, open‑source integration, and metrics‑driven continuous improvement.
The article explains DevOps culture, the shift toward eliminating barriers between development and operations, and outlines key practices such as frequent small releases, microservices, continuous integration, continuous delivery, and infrastructure as code to accelerate innovation while maintaining reliability.
The article explains how DevOps combines culture, practices, and tooling to enable organizations to deliver applications and services more rapidly by breaking down silos between development and operations, fostering cross‑functional collaboration, automation, and continuous improvement throughout the software lifecycle.
This article chronicles Tencent's network journey from its modest 2004 infrastructure through rapid expansion, critical incidents, and architectural breakthroughs like SET zones, SDN, and MPLS VPN, illustrating how the company transformed its data‑center operations to support massive user growth.
This article examines Baidu’s Cluster Control System (CCS), detailing its two‑level data model, four‑tier scheduling architecture, and three‑layer execution agents, and explains how control and execution information, redundancy, and fault‑tolerant designs enable reliable large‑scale command execution across thousands of servers.
This article explores the fundamentals of command execution, examines the challenges of scaling command delivery across hundreds of thousands of servers, and details Baidu’s Cluster Control System architecture that enables efficient, flexible, and extensible distributed command management for operations teams.
This article walks through a real‑world incident where a data platform’s CPU usage surged to 98%, detailing how to pinpoint the high‑load process, trace the offending Java thread, uncover a time‑utility method bottleneck, and apply a concise fix that reduced load by thirtyfold.
This article details the end‑to‑end cloud migration of China Telecom's payment platform, covering pre‑migration challenges, architectural redesign, data‑sync strategies, the eight‑hour cut‑over process, post‑migration performance gains, and future DBaaS plans, all based on a 2017 DBAplus conference talk.
This article explores the everyday challenges of operations teams handling system, access, runtime, error, and business logs, outlines the pain points of log collection and standardization, and provides a comprehensive guide to implementing the ELK (Elastic) stack—including Elasticsearch, Logstash, and Kibana—for effective monitoring and analysis.
This article presents a curated list of 25 DevOps books, compiled from the DevOps Handbook and other sources, displayed with images, and invites readers to share, recommend, and comment as the list continues to be updated.
The SNG Operations team shares the five critical challenges of managing tens of thousands of domains, certificates, server failures, automation, and rapid scaling during peak events, and outlines the practical strategies they used to ensure reliable, near‑real‑time service delivery.
This article analyzes the instability of Alibaba's test environment container provisioning, identifies root causes, and presents a comprehensive solution—including automatic container replacement, a buffer pool, and resource‑pool rationalization—that raised the container success rate to 99.9% and stabilized performance.
When accidental deletion removes files from the /data/webapps/.../upload directory, this guide shows how to install extundelete, locate the relevant inodes, and safely recover the lost data using read‑only mounts and specific restore commands.
This guide outlines a systematic Linux learning path—starting with basic commands and permissions, progressing through intermediate networking, services, and security, and culminating in advanced cloud, automation, and high‑availability skills—to help learners become competent operations engineers.
This article provides a comprehensive, easy‑to‑understand overview of performance tuning, covering what, why, when, where, who, and how to optimize hardware, operating systems, and applications, with practical examples, metrics, tools, and step‑by‑step procedures for both pre‑deployment and post‑deployment optimization.
An experienced Linux sysadmin shares a curated list of common operational issues—from shell script execution failures and cron output overload to disk space leaks, MySQL storage pitfalls, and network latency—detailing root causes, step‑by‑step diagnostics, and practical solutions to keep servers running smoothly.
The article examines how intelligent scheduling combines AI-driven bots and human agents to dynamically allocate customer service resources, addressing market slowdown, complex business structures, and operational pain points through perception, decision‑making, and execution capabilities, while outlining current implementations and future plans at Ant Financial.
This article explains how Meituan's food delivery platform built an automated operations system—covering complex workflows, traffic spikes, rapid growth, pain‑point analysis, core goals, system architecture, and automation techniques such as anomaly detection, service‑protection triggers, and full‑link testing—to improve reliability and reduce manual effort.
This article outlines the evolution of Tencent Game's Blue Whale platform, describing its background, design philosophy, six‑platform architecture, and phased approach to automating basic operations, empowering product teams, and leveraging real‑time big‑data analytics to create a data‑driven, service‑oriented operations ecosystem.
This article reflects on ten years of Tencent's operations experience, sharing the author's career journey, the evolution of large‑scale service management, the design of the L5 fault‑tolerant system, unified frameworks, resource packaging, CMDB virtual mirrors, and automated deployment practices that together enable reliable, efficient, and scalable infrastructure.
This comprehensive guide covers Linux operations interview topics, including the definition of ops, game‑ops roles, server management techniques, RAID levels, load‑balancing tools (LVS, Nginx, HAProxy), middleware, MySQL troubleshooting, backup solutions, health‑check configuration, common networking commands, virus removal, TCP/IP model, Nginx modules, log retention, system optimization, and useful command‑line shortcuts, all presented with clear explanations and practical examples.
Alibaba senior technical expert Houyi explains how intelligent network automation, rapid fault detection, automatic isolation, and traffic‑optimizing technologies were applied during Double 11 to dramatically improve stability, reduce costs, and enhance overall network performance across millions of devices.
This article recounts how a fintech platform migrated from manual upgrade scripts to a fully automated operations workflow using Rundeck, Ansible, DNS, API gateways, and a custom backup tool, dramatically improving deployment speed, reducing downtime, and sharing open‑source utilities for the community.
This article explains the DevOps concept, its historical evolution, the advantages of faster and more reliable software delivery, the cultural and technical drivers behind its rise, and current adoption trends and tools used by enterprises worldwide.
The article reflects on how DevOps, Docker, Kubernetes and lean/TOC thinking have transformed over the past two years, explains the three‑step workflow for building a value‑stream delivery pipeline, and offers practical guidance on culture, feedback loops, and handling unplanned work to achieve reliable, business‑focused IT operations.
The article recounts the author’s 2017‑onward journey building an intelligent operations platform at Tencent, detailing challenges such as legacy thresholds, AIOps talent shortage, and lack of frameworks, and explains how a two‑stage hybrid unsupervised‑supervised model was devised to automatically detect anomalies across millions of KPI time‑series, enabling scalable root‑cause analysis and cost optimization.
This article provides a comprehensive overview of the Kubernetes kube‑scheduler, detailing its watch‑and‑bind mechanism, two‑stage scheduling algorithm, and an in‑depth analysis of the source code structure and key functions for readers interested in mastering Kubernetes scheduling internals.
This article details the architecture and practical techniques behind WeChat's large‑scale monitoring system, covering lightweight data collection, classification of real‑time, non‑real‑time and user‑specific metrics, anomaly detection algorithms, automated configuration, and high‑performance storage solutions for billions of events per minute.
This article presents the challenges of virtual product development and describes three engineering solutions—a Footprint tracking system, a Mock Server platform, and a pre‑release gray‑release strategy—detailing their backgrounds, architectures, implementations, and operational benefits for improving debugging, testing, and deployment efficiency.
This article presents a systematic troubleshooting workflow for Linux operations engineers, covering six typical problems—including filesystem corruption, disk‑space exhaustion, inode depletion, deleted files that still occupy space, too many open files, and read‑only filesystems—along with concrete commands and solutions to resolve each issue.
This article outlines the key categories of operations tools—including process management, release automation, configuration handling, resource isolation, and comprehensive monitoring and alerting solutions—providing a practical guide for building reliable, automated infrastructure workflows.
This guide explains essential Linux storage commands—including fdisk, df, du, mount, and umount—covers automatic mounting via /etc/fstab, details disk partitioning with fdisk, and demonstrates how to format partitions using mkfs, providing practical examples for each step.
This article presents a comprehensive list of 85 practical operations rules covering capacity planning, monitoring, automation, security, documentation, budgeting, team management, and incident handling, offering actionable guidance for building reliable, scalable, and efficient IT infrastructure.
A comprehensive guide to common Linux operations interview questions, covering environment variables, TCP characteristics and handshake, proxy principles, TCP vs UDP trade‑offs, OOP vs procedural programming, HTTP request flow and status codes, deadlock concepts, TCP states, and inter‑process communication mechanisms.
This guide walks you through installing Nginx on CentOS, compiling from source, configuring core settings, managing workers, setting up virtual hosts, and using common directives such as gzip, proxy, and access control to optimize performance and security.
This article explains why quantifiable data is essential for evaluating the impact of operational changes, outlines common data‑collection stacks, defines core business and user‑centric metrics, and demonstrates practical monitoring techniques such as PCU analysis, simulated user flows, and intelligent scaling to turn ops work into measurable business value.
When troubleshooting a Linux server, this guide shows the ten essential command‑line tools—uptime, dmesg, vmstat, mpstat, pidstat, iostat, free, sar, and top—to quickly assess CPU, memory, disk, and network health within the first sixty seconds, helping you identify saturation and bottlenecks.
Meituan’s Meipai service, serving over 150 million monthly users with a hybrid private‑public cloud architecture, spent three years building a comprehensive, three‑dimensional monitoring platform that unifies client‑to‑server metrics, alerts and reporting to ensure resilient, scalable operations and rapid business growth.
This article explains how to anticipate and monitor Elasticsearch issues such as node unavailability, OOM errors, and long garbage‑collection pauses by tracking key performance metrics across query, indexing, memory, and system levels, helping prevent service disruptions.
This article explains how Alibaba’s supply‑chain algorithms and data‑driven operations enable rapid order processing, accurate demand forecasting, dynamic inventory allocation, and efficient warehouse fulfillment during the massive traffic of Double 11, highlighting the challenges faced and the solutions implemented.
This article explains what Linux load average measures, how to view the 1‑, 5‑, and 15‑minute values, interprets the numbers using traffic analogies, presents stress‑test scenarios across different CPU cores, and shows how load average guides effective troubleshooting of CPU and I/O bottlenecks.
This article shares a comprehensive overview of game operation security at Tencent, covering personal background, real‑world incident cases, the inherent challenges of large‑scale game services, past monitoring efforts, and a new data‑driven alerting framework that dramatically reduces false alarms while protecting game economies.
