This article reviews how leading Chinese banks and financial institutions have adopted the CAICT DevOps Capability Maturity Model, detailing their assessment results across continuous delivery, technical operations, security, and tooling standards, and highlighting the operational benefits achieved.
This article reviews how major Chinese state‑owned banks applied the China Information Communication Research Institute's DevOps Capability Maturity Model, detailing assessment results, project implementations, and performance improvements across continuous delivery, security, and system tooling, offering valuable insights for enterprises pursuing DevOps transformation.
This article reviews how major Chinese joint‑stock banks have adopted the CAICT‑led DevOps Capability Maturity Model, detailing the number of evaluated projects, specific case studies, and the model’s industry‑wide significance for digital transformation and operational excellence.
This guide explains Nginx load balancing concepts, compares hardware and software approaches, details various balancing algorithms with configuration examples, and shows how to integrate Nginx with SpringBoot for practical load‑balancing tests and deployment tips.
This article explains how to achieve high availability in internet systems by layering architecture, using redundancy and automatic failover across access, proxy, microservice, middleware, and storage components, and discusses practical techniques, common pitfalls, and operational safeguards for resilient services.
The article outlines Deming's fourteen fundamental principles for quality management, emphasizing a permanent purpose of improvement, a new philosophy, eliminating reliance on inspection, fostering continuous improvement, modern training and supervision, breaking departmental barriers, and establishing top‑level leadership to drive ongoing innovation.
Drawing from three and a half years of Linux operations, this guide outlines practical standards for testing, confirming commands, avoiding concurrent edits, mandatory backups, data safety, security hardening, continuous monitoring, performance tuning, and the right mindset to keep production environments stable and secure.
The 2021 CIO Survey reveals that organizations worldwide are struggling to fill cybersecurity, artificial intelligence, and data analytics positions, with remote work expanding the talent pool but still leaving critical roles hard to staff, highlighting the need for strategic prioritization and new hiring approaches.
This article outlines a comprehensive, cloud‑native rate‑limiting solution using Kong gateway, covering background challenges, design considerations, multi‑layer architecture, plugin development, CI/CD workflow, deployment strategies, and operational best practices to achieve low cost, high efficiency, and high quality across diverse projects.
This article shares practical experiences and solutions for improving an Alertmanager‑based alert system, addressing problems such as noisy alerts, lack of escalation, missing recovery notifications, suppression limitations, and cumbersome silence management by redesigning architecture, adding custom scripts, and extending database support.
This article explains how to install and configure the Deploy Dashboard plugin in Jenkins to visualize deployment versions across environments, add deployment information via pipeline code, create custom dashboard views, and add quick‑deploy buttons for streamlined CI/CD operations.
This article analyzes the challenges of alert overload in large‑scale microservice environments and presents a systematic approach—including timeliness metrics, a maturity model, lifecycle tracking, feedback loops, downgrade mechanisms, and cross‑service aggregation—to improve alert effectiveness and reduce noise.
This article explains why zero‑downtime releases are essential for modern services, defines three maturity levels, compares common release patterns, outlines the required technical components, and provides step‑by‑step Spring Boot/Eureka procedures—including configuration and graceful‑shutdown scripts—to keep applications available during deployment.
This article outlines common data migration scenarios such as system consolidation and database sharding, details analysis of user data before migration, discusses conflict resolution rules, presents migration planning and acceptance testing steps, and highlights post‑release monitoring and user feedback handling.
This article introduces essential Redis operational tools, covering real‑time monitoring with the INFO command and Prometheus‑exporter, data migration using Redis‑shake, consistency checking via Redis‑full‑check, and cluster management through CacheCloud, providing practical guidance for administrators.
This article explains how 58 Recruitment’s design team created a consistent brand feel across multiple online hiring events by using user insights, clear positioning, standardized visual principles, and a modular template system that speeds up design, development, and deployment while enhancing user perception.
This article details the evolution of monitoring technologies, HuoLala's three‑phase monitoring architecture, the integration of Prometheus, VictoriaMetrics and SkyWalking, zero‑intrusion bytecode instrumentation, full‑link trace sampling, visual dashboards, metric‑trace‑log correlation, and future plans for root‑cause analysis and intelligent alerting.
This article analyzes Haro’s two‑wheeler dispatch problem, compares it with food‑delivery and ride‑hailing scheduling, outlines eight technical challenges, presents a multi‑fast‑good‑cheap algorithm framework, and details a simulation system that validates and improves the scheduling solution.
This article categorizes Linux high‑risk commands, explains why a blanket ban is unsuitable, and offers practical handling, monitoring, and bastion‑host strategies to protect data across system, database, and big‑data operations.
This article shares practical Linux and vSphere techniques—including using rsync for rapid bulk deletions, scanning SCSI devices without reboot, safeguarding rm with shell parameter expansion, mounting remote filesystems via sshfs, and managing user groups with gpasswd—to boost everyday operations efficiency.
This article explains how to calculate data‑center floor area, estimate UPS capacity, determine cooling load, and assess total power consumption, providing practical formulas and recommendations for efficient power management and reliable operation of large‑scale computer rooms.
This article explains what a reliability culture is, why it matters, how to cultivate it through mission statements, early‑stage reliability testing, chaos‑engineering practices like GameDays and FireDrills, and how organizations can continuously learn from incidents to improve system availability and customer trust.
This article presents a comprehensive 2022 DevOps learning roadmap compiled by engineer Vrashabh Sontakke, providing downloadable images and links to detailed resources that outline the essential tools, practices, and knowledge areas for aspiring DevOps professionals.
This article details Yanxuan's four‑year evolution of a unified monitoring, alerting, and event‑bus platform for micro‑service architectures, covering design principles, technology selection, multi‑stage implementation, dynamic sampling, custom plugins, data modeling, visualization upgrades, and the final fault‑driven, system‑wide integration.
This guide explains how to integrate the Arthas Java diagnostic tool with the Rainbond cloud‑native platform, covering plugin installation, tunnel setup, Web Console access, environment configuration, command usage, and flame‑graph generation for effective Java application troubleshooting.
The article explains why, contrary to common belief, the rise of multi‑cloud environments actually demands self‑built database middleware to ensure seamless adaptation, vendor neutrality, high availability, and cost‑effective scalability for growing enterprise workloads.
The article outlines Deming's fourteen fundamental principles for quality management, emphasizing long‑term product and service improvement, statistical control, continuous process enhancement, employee empowerment, cross‑department collaboration, and the establishment of a high‑level management structure that drives perpetual innovation.
This article describes the motivation, design, architecture, key features, and outcomes of JD.com's data construction platform, which automates test data creation using a Springboot‑Mybatis‑Vue stack, significantly reducing manual effort and improving testing efficiency across multiple business lines.
This article presents a comprehensive outline of a shell operations development course, covering core knowledge maps, SSH multi‑host management, distributed application deployment with Kafka, multi‑host service control scripts, and essential Ansible automation techniques for modern DevOps environments.
Zabbix 6.0 introduces a suite of enhancements—including high‑availability clustering, advanced business‑service monitoring with SLA calculations, root‑cause analysis, machine‑learning‑based anomaly detection, Kubernetes templates, a redesigned audit log, TLS certificate checks, UI improvements, customizable branding, and new integrations—aimed at boosting operational visibility and efficiency across cloud and on‑premise environments.
This article provides a comprehensive overview of Vivo's server‑side monitoring system, detailing its architecture evolution, data collection pipelines, OpenTSDB storage design, alerting mechanisms, and comparisons with other mainstream monitoring solutions, offering practical guidance for technology selection and implementation.
This article explores the origins of DevOps, defines its core principles, explains why organizations adopt it to accelerate delivery, reduce technical debt, and eliminate system fragility, and debunks three common misconceptions about its relationship with agile, tooling, and role expectations.
In high‑concurrency scenarios, massive TIME_WAIT TCP connections can exhaust local ports, causing new connections to fail, but by understanding the TCP four‑handshake, adjusting socket reuse settings, and using keep‑alive, you can mitigate the issue.
This article details Industrial and Commercial Bank of China's journey to standardize continuous delivery, outlining the background challenges, the definition of release units, the construction of a standardized toolchain, implementation results, and future plans to enhance DevOps performance across the enterprise.
This article presents the design, implementation, and evaluation of CloudRCA, an intelligent root cause analysis framework for Alibaba Cloud's big‑data computing services, detailing challenges such as heterogeneous data, sample imbalance, and real‑time constraints, and describing the multi‑stage data processing, hierarchical Bayesian modeling, and deployment results that reduce MTTR by 20%.
This article details the operational mindset, stability framework, and transformation journey of the Zuoyebang infrastructure team, covering service lifecycle management, standardization, cloud‑native architecture, multi‑active deployment, incident pre‑plan platforms, traffic scheduling, monitoring, capacity planning, and future directions for SRE service‑orientation.
This article outlines the core reliability principles of the Google Cloud Architecture Framework, explaining key terms such as SLI, SLO, error budget, and SLA, and describing design and operational guidelines for defining reliability goals, building observability, ensuring high availability, creating robust processes, effective alerting, and collaborative incident management.
This tutorial explains how to install the ngx_http_geoip2 module, upgrade Nginx to version 1.18, configure GeoIP2 databases, and modify the Nginx configuration to automatically reject requests from foreign IP addresses, complete with command‑line examples and verification steps.
The 2022 GOPS Global Operations Conference in Shenzhen gathered over a thousand attendees for two days of 18 sessions, featuring more than 80 speakers who shared insights on DevOps, cloud native, AI engineering, MLOps, and industry‑specific operational practices across finance, telecom, and technology sectors.
Consul 1.13 introduces a Kubernetes CNI plugin, enhanced Envoy troubleshooting CLI, upgraded terminating gateways, and a preview of cluster peering, enabling organizations to reduce operational complexity, securely connect services at scale, and integrate service mesh capabilities directly into their workflows.
This article details Meituan's three‑year journey building a self‑developed pipeline engine that now handles nearly 100,000 daily executions with over 99.99% reliability, covering background, challenges, architectural decisions, core scheduling and resource‑pool designs, component layering, and future cloud‑native plans.
This document outlines a detailed Service Level Agreement (SLA) framework covering quality service standards, management processes, testing capabilities, tool support, resource management, measurement systems, risk handling, and continuous improvement to ensure consistent delivery and customer satisfaction across IT operations.
The article clarifies common misconceptions about DevOps, explains that true development‑operations integration relies on dedicated ops teams, automation tools, standardized delivery artifacts, and unified permission management rather than developers performing ops tasks, and highlights Google SRE practices as a practical guide.
This article describes how Qunar Travel has evolved its testing environment governance from a fixed 10‑machine setup to a template‑driven, soft‑routing architecture (Environment 3.0), improving delivery speed, reliability, business connectivity, and reducing operational costs through automated sync, smart recommendations, and continuous business checks.
This article explains why measuring is essential for continuous delivery, introduces four valuable metrics—deployable package count, cycle time, mean time between failures, and mean time to recovery—and offers practical tips to improve delivery speed and reliability.
This article shares a real‑world case study of how a hidden database‑connection leak in a pod’s health‑check caused severe latency, and outlines four key lessons on performance metrics, testing, legacy system maintenance, and the critical impact of every line of code.
This article details Huolala's journey from basic monitoring to an AI‑driven intelligent observability platform, covering AIOps concepts, a comprehensive monitoring framework, practical implementations, automated alert analysis, lessons learned, and future directions for large‑scale operations.
ICBC’s software development center outlines its multi‑year journey adopting XOps practices—DevOps, DevSecOps, DataOps, MLOps, AIOps, ChatOps and BizDevOps—to boost development efficiency, enhance security, accelerate data‑driven AI, and cut costs, showcasing measurable improvements in release frequency, defect rates, and operational automation.
This article explains why oversized logs hurt system performance, presents three practical log‑shrinking strategies—printing only necessary logs, merging duplicate entries, and simplifying content—illustrates them with Java code snippets, and evaluates their impact through a real‑world case that cuts daily log volume from 5 GB to under 1 GB.
Learn how to set up Prometheus to scrape Nexus repository metrics, configure authentication, and create insightful Grafana dashboards that visualize component, Jetty, and JVM metrics, enabling proactive troubleshooting and resource optimization for Nexus services.
The article outlines twenty‑four essential capabilities—spanning continuous delivery, architecture, product and process, lean management, and culture—that research shows drive high performance in software delivery and organizational outcomes.
A network engineer recounts a terrifying outage caused by a firmware‑related SSD bug that locks core switches after 28,224 hours of use, explains the emergency troubleshooting steps taken, and highlights the need for better vendor recall mechanisms to protect critical infrastructure.
In the era of big data, poor operations data quality undermines analytics, decision‑making and digital transformation, so organizations must adopt a three‑dimensional governance approach—covering organization, processes and technology—to ensure completeness, consistency, accuracy, uniqueness, relevance and timeliness of their operational data.
This article explains why alert fatigue harms on‑call teams in Kubernetes environments and offers eight practical techniques—ranging from metric definition to alert suppression—to reduce noise, improve response efficiency, and protect team well‑being.
Extreme summer temperatures across the globe have forced major cloud providers like Google and Oracle to shut down servers, caused runway meltings in the UK, triggered heat‑related health crises, and highlighted the vulnerability of data‑center cooling systems to unprecedented heat waves.
This article presents Tencent's PCG data platform evolution, detailing the challenges of integrating multiple business groups, the design of a unified big‑data architecture, real‑time and batch processing pipelines, MQ and ATTA systems, and comprehensive operational practices for reliability and scalability.
This article presents a comprehensive guide on diagnosing, monitoring, and quickly resolving call‑center system failures, covering common troubleshooting steps, monitoring enhancements, emergency‑plan design, and intelligent event‑handling techniques to improve operational reliability and response speed.
Bilibili adopted Google‑SRE SLO practices—selecting SLIs, defining availability and latency targets, grading services, and tracking error budgets—but encountered costly grading inconsistencies, hidden error detection, and inaccurate business‑level metrics, leading them to realize SLOs are chiefly valuable for early alerting rather than exhaustive reporting.
The article explains how enterprise automation should be treated as a strategic business initiative, outlines the value drivers such as quality, agility, compliance and cost savings, and presents a framework—including Ansible Automation Platform—to integrate and coordinate diverse automation projects across hybrid cloud environments.
This article examines post‑2022 DevOps trends—including GitOps, AIOps/MLOps, DevSecOps, FinOps, DataOps, chaos engineering, SRE, hybrid deployment, automation, IaC, serverless, cloud‑native, microservices, containerization, Kubernetes, edge computing, data observability, and platform engineering—illustrating each with real‑world case studies that show measurable improvements in speed, reliability, cost, and scalability.
On July 28, 2022, China Academy of Information and Communications Technology announced that Zhongyuan Bank's R&D Efficiency Insight Platform passed the DevOps General Efficiency Measurement Model assessment at the industry promotion level, highlighting the bank's leading DevOps practices, detailed interview insights, and future development plans.
Zhejiang Commercial Bank’s Financial Technology team discusses how their industry‑first DevOps continuous‑delivery platform earned a Level‑3 assessment from the China Academy of Information and Communications Technology, highlighting the standards, tools, metrics, challenges, and future plans that propelled their supply‑chain finance service platform to a leading position in digital transformation.
This article details how Agricultural Bank's fintech subsidiary, Nongyin Jinke, passed the 2022 CAICT DevOps continuous delivery and toolchain assessments at level 3, sharing interview insights on their platform, pipeline, challenges, results, and future DevOps plans.
Designing a unified, enterprise‑level monitoring and alerting platform, this article analyzes the shortcomings of standard Prometheus‑Grafana‑AlertManager setups, outlines platform‑vs‑business responsibilities, details architecture, user‑scenario requirements, component selection, high‑availability strategies, and deployment models to achieve scalable, easy‑to‑use observability.
This article details the design, deployment, and performance‑tuning techniques used by Tencent's TEG Data Platform to operate a massive Apache Pulsar cluster handling trillions of messages per day, covering server‑side parameters, client‑side configurations, common bottlenecks, and step‑by‑step troubleshooting advice.
After a birthday outing, a payment failure revealed a Windows server’s inability to connect to a bank, leading the author through CPU/memory checks, network diagnostics, port exhaustion discovery, registry tweaks, malicious process removal, and final remediation, highlighting essential operations lessons.
Chaos engineering, a discipline for experimenting on distributed systems, helps teams identify hidden weaknesses, improve high‑availability, and build confidence in production by defining stable states, injecting realistic failures, and measuring impact through observability metrics, with practical steps, tool choices, maturity stages, and evaluation methods.
This guide introduces the open‑source Tabby terminal emulator, explains how to download the appropriate installation package for Windows, macOS, or Linux, and provides step‑by‑step instructions for creating SSH connections, using the built‑in SFTP feature, and customizing appearance and shortcuts.
This article explains practical methods for reducing oversized log files—such as printing only essential logs, merging entries, and simplifying messages—illustrated with code examples and a real‑world case study that lowered daily log volume from 5 GB to under 1 GB while preserving debugging capability.
The author recounts a chaotic typical day for Chinese operations engineers, then proposes a balanced schedule that prioritizes urgent firefighting tasks while dedicating most time to proactive monitoring, performance tuning, tool development, and continuous learning for long‑term system stability.
This article recaps Huawei Cloud's DTT tech talk on SaaS cloud‑native applications, covering key challenges such as infrastructure selection, system and data‑storage design, multi‑tenant routing, various tenant isolation models, cloud‑native services like CCE and CSE, and the comprehensive SaaS support plan for developers.
This article compares Prometheus and Zabbix, outlining their histories, architectures, storage models, configuration complexity, community activity, and suitability for different environments, and concludes with recommendations on when to choose each monitoring system.
This article details Meituan's accommodation data governance team's evolution toward an automated, systematic, and standardized governance framework, covering background challenges, the conceptualization of a comprehensive governance system, its practical implementation across standardization, digitization, and systematization, and the resulting operational benefits and future directions.
The article explains how DevOps relies on automation tools like Docker and Jenkins, argues that Python’s ease of use, versatility, and automation capabilities make it the optimal programming language for DevOps professionals, and advises continuous learning for operations staff transitioning into DevOps roles.
This guide details a comprehensive approach to stability assurance and test innovation, covering full‑link stress testing, functional pre‑runs, loss‑prevention, fault drills, efficiency innovation from zero to one, and systematic quality assurance thinking for large‑scale promotional events.
This postmortem details the July 13, 2021 Bilibili outage caused by a Lua‑induced CPU 100% bug in the OpenResty‑based SLB, describing the incident timeline, root‑cause analysis, mitigation steps, and the subsequent technical and process improvements to enhance reliability and multi‑active deployment.
This article explains what Kubernetes (K8s) is, its core characteristics of portability, extensibility, and automation, and how it enables cloud‑native, container‑based deployments, resource optimization, seamless service migration, and operational automation across enterprises of all sizes.
This article presents a comprehensive, data‑driven case study of how Tencent’s internal Kubernetes/TKE platform reduced monthly CPU usage by up to 70% and memory usage by 50% through systematic cost data collection, VPA/HPA enhancements, custom scheduling, node‑level over‑commit, and safe node decommissioning, while maintaining zero‑incident reliability.
This article explains how a payment company's reconciliation center matches internal transaction records with bank clearing data, detailing the clearing reconciliation system, reconciliation definitions, data sources, processing logic for one‑to‑one, many‑to‑many, and one‑to‑many scenarios, as well as module functions, exception handling, and data recovery procedures.
This guide outlines how to classify, configure, and automate development, integration, UAT, pre‑production, and production environments, establishing principles, standards, recommended practices, common operational steps, and key metrics to improve deployment efficiency and maintain security and compliance.
This article walks through a real‑world case of a private‑cloud service experiencing 504 and 499 errors due to cross‑continent latency, detailing step‑by‑step troubleshooting, log analysis, Nginx timeout parameter tuning, SLB configuration changes, and key concepts behind Nginx error codes and proxy settings.
Grafana 9.0 introduces a suite of usability enhancements—including a visual Prometheus query builder, a visual Loki LogQL generator, improved Explore‑to‑dashboard workflow, revamped heatmap panel, command palette, panel search, trace panel, navigation upgrades, and alerting refinements—aimed at simplifying observability, data visualization, and operational efficiency.
Drawing from three and a half years of operations experience, this guide outlines practical online operation standards, data protection strategies, security measures, daily monitoring, performance tuning tips, and the right mindset to avoid costly incidents and ensure stable, secure systems.
This article explains why timeouts are inevitable in distributed systems, illustrates the challenges they create, and presents five practical strategies—including using defaults, safe retries, status checks, and user‑focused fallback—to manage slow or failed API calls in microservice architectures.
A seasoned operations professional shares personal experiences and hard‑earned insights on why traditional monitoring often becomes ineffective, how over‑automation and noisy dashboards hurt teams, and what a capability‑focused, user‑centric approach to observability should look like.
This article explains the DevOps methodology in the context of AWS, defines its relationship to cloud operations, and introduces three core AWS CI/CD services—CodeCommit, CodePipeline, and CodeBuild—detailing their features and benefits for accelerating software delivery.
This article compiles and categorizes recent model‑related publications, offering a comprehensive list of evaluation‑model resources—including concepts, preprocessing techniques, weighting methods, and various algorithms—and optimization‑model references covering linear and integer programming, graph theory, network flows, and meta‑heuristics.
Reliability and resilience are distinct yet complementary goals for cloud services; reliability is the outcome of consistently meeting performance expectations, while resilience describes a system’s ability to continue operating despite failures, and this article introduces the concepts and outlines a four‑part series exploring related threats and enhancement techniques.
This article systematically outlines the design, components, data flow, and evolution of Vivo’s server‑side monitoring system, covering data collection, transmission, storage with OpenTSDB, visualization, alerting mechanisms, and comparisons with other monitoring solutions.
This article explains what technical debt is, why it arises, and how adopting DevOps practices such as cross‑functional teams, automation, infrastructure‑as‑code, containerization, and API‑centric design can identify, track, and repay technical debt to improve system reliability and agility.
This article explains the principles and configuration of Keepalived, covering its role in providing high‑availability virtual IPs, the VRRP election process, traffic forwarding, load‑balancing algorithms, and practical configuration examples with vrrp_instance and vrrp_script directives.
This article examines the shortcomings of traditional single-point load balancing, explains how CDNs distribute traffic using DNS, details the DNS hierarchy and SOA mechanism, and shows practical steps to implement DNS-based load balancing with examples from GitHub and major DNS providers.
The article explains how Redis Sentinel provides high availability by monitoring master‑slave instances, detecting failures through periodic pings, distinguishing subjective and objective down states, performing quorum arbitration, and automatically promoting a slave to master to ensure continuous service.
This article explains decision analysis by defining its concept, outlining basic elements such as decision makers, goals, alternatives, natural states, outcomes and criteria, classifying decisions into deterministic, risk, competitive and sequential types, and describing the five-step scientific decision‑making process.
This article provides a step‑by‑step tutorial for beginners on installing, initializing, and using the BT (BaoTa) server management panel on Linux or Windows, covering cloud server setup, firewall rules, domain binding, UI access, package selection, and optional software installations.
This article explains how to prioritize ad orders, use front‑loading to smooth traffic fluctuations, model delivery constraints with differential equations, and apply PID‑based selection coefficients to achieve efficient, real‑time traffic allocation in streaming advertising systems.
This guide introduces thirteen practical Linux operations tools—from network bandwidth monitors like Nethogs to security scanners such as NMap—providing concise descriptions, installation commands, and usage tips to help system administrators efficiently manage and secure their servers.
This article details InnoLive's migration from Open‑Falcon to the Nightingale monitoring platform, describing the pain points of their previous system, the selection process, deployment architecture, collection practices, and the substantial cost and performance benefits achieved.
This article explains the background, benefits, and measurement criteria of Kubernetes Horizontal‑Pod‑Autoscaler (HPA), describes the creation of metric tables and SQL queries for collecting scaling events and CPU usage, and presents a Python‑based workflow that aggregates the data, stores daily reports, validates results, and sends automated email summaries.
The article explains how integrating the four "持" principles from the book "Continuous Delivery 2.0" into daily software development can prevent the recurring problem of late‑night releases by emphasizing minimal work, continuous decomposition, feedback, and ongoing improvement.
