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Qunar

24 articles · Page 1 of 1

Sep 21, 2026 · R&D Management

AI-Driven Large-Scale Refactoring: Qunar's 70% Efficiency Boost with Harness & Loop

Qunar shares its engineering methodology for AI-driven large-scale refactoring of a 150K-line high-concurrency core system, achieving 70% efficiency gains (100PD to 30PD), 70% latency reduction, and 45% resource savings through Harness-Loop constraints, task decomposition, shadow traffic validation, and phased rollout.

AI codingEngineering MethodologyHarness-Loop

0 likes · 27 min read

AI-Driven Large-Scale Refactoring: Qunar's 70% Efficiency Boost with Harness & Loop

Qunar Tech Salon

Jan 14, 2025 · Frontend Development

AI-Driven Frontend Code Generation at Qunar: D2C and Large‑Model Solutions

In the AI era, Qunar's front‑end tech director presents how D2C and large‑model‑based code generation dramatically improve front‑end productivity across three business scenarios, achieving up to 55% automated code coverage for both C‑end and B‑end applications.

AID2CQunar

0 likes · 25 min read

AI-Driven Frontend Code Generation at Qunar: D2C and Large‑Model Solutions

Qunar Tech Salon

Jun 8, 2023 · Operations

System Complexity Modeling and Anti‑Corruption Governance at Qunar

This article describes how Qunar's technology center defined, measured, and managed system complexity through a custom modeling framework, implemented a dashboard for continuous monitoring, and established an anti‑corruption governance process that limits complexity growth to maintain low maintenance costs across hundreds of applications and systems.

Qunargovernanceoperations

0 likes · 14 min read

System Complexity Modeling and Anti‑Corruption Governance at Qunar

Qunar Tech Salon

Jun 2, 2023 · Backend Development

Traffic Recording and Replay at Qunar: Architecture, Practice, and Impact on Interface Automation Testing and Full‑Link Stress Testing

This article describes Qunar's use of traffic recording and replay technology for fault isolation, performance optimization, and upgrade migration, detailing the evolution of their Java‑based agents, the end‑to‑end testing workflow, full‑link stress‑test integration, and the measurable business and performance outcomes.

Java AgentQunarReplay

0 likes · 15 min read

Traffic Recording and Replay at Qunar: Architecture, Practice, and Impact on Interface Automation Testing and Full‑Link Stress Testing

Qunar Tech Salon

Apr 20, 2022 · R&D Management

Designing Business Architecture for Activity Capability Layer: A Qunar Case Study

This article examines the concept of business architecture, its origins in TOGAF, and presents a detailed case study of Qunar’s activity capability layer design, highlighting pain points, architectural solutions, and a step-by-step methodology for building robust, reusable activity systems.

Business ArchitectureQunarTOGAF

0 likes · 15 min read

Designing Business Architecture for Activity Capability Layer: A Qunar Case Study

Qunar Tech Salon

Mar 22, 2022 · Backend Development

Interview with Zheng Jimin on Domain-Driven Design Practices and Technical Brand Building at Qunar

In this interview, Qunar's technical director Zheng Jimin shares how the company revived Domain‑Driven Design to restructure hotel pricing, discusses strategic and tactical design, implementation challenges, success criteria, and the broader impact of technical influence on organizational growth.

DDDDomain-Driven DesignQunar

0 likes · 14 min read

Qunar Tech Salon

Jan 25, 2022 · Fundamentals

Curated Collection of Qunar Technical Articles on Architecture Design, Big Data, Frontend, and Cloud Native (2021)

This article compiles a selection of Qunar's 2021 technical writings covering architecture design, big data processing, front‑end engineering, and cloud‑native practices, providing titles, authors, brief abstracts, and direct links for readers seeking in‑depth engineering insights.

Qunararchitecturebig data

0 likes · 8 min read

Curated Collection of Qunar Technical Articles on Architecture Design, Big Data, Frontend, and Cloud Native (2021)

Qunar Tech Salon

Jan 24, 2022 · Databases

Qunar 2021 Technical Salon – Infrastructure Articles Collection (Databases, Operations, Components)

This article compiles the 2021 Qunar Technical Salon infrastructure series, presenting original technical writings on databases, operational practices, and core components, each linked to detailed posts that share real‑world experiences, design guidelines, and performance insights for engineers and practitioners.

DevOpsInfrastructureQunar

0 likes · 7 min read

Qunar 2021 Technical Salon – Infrastructure Articles Collection (Databases, Operations, Components)

Qunar Tech Salon

Jan 19, 2022 · Cloud Native

Interview with Zhu Shizhi, Head of Infrastructure at Qunar: Building Technical Brand and Cloud‑Native Practices

In this interview, Zhu Shizhi, head of Qunar's infrastructure team, explains the evolution of the company's technical brand, the department's role in advancing cloud‑native and foundational technologies, key achievements such as open‑source collaborations and industry talks, and his vision for future technical branding efforts.

Qunarinterviewopen source

0 likes · 10 min read

Qunar Tech Salon

Jan 18, 2022 · R&D Management

Building a Technology Brand at Qunar: Insights from TC Chair Wang Zhimeng

In this interview, Qunar's Technology Committee chair Wang Zhimeng shares how the company built its technology brand over the past two years, detailing the challenges, strategies, achievements, and future plans for fostering a strong technical community and enhancing talent attraction.

QunarR&D managementTechnology Brand

0 likes · 10 min read

Qunar Tech Salon

May 11, 2021 · Fundamentals

Insights into Domain-Driven Design Implementation at Qunar: Current Status, Challenges, and How to Get Started

The article interviews Qunar's technology director to explore the current state of Domain-Driven Design in China, its business benefits and challenges, the company's practical experience with DDD and microservices, and provides guidance on how teams can quickly adopt DDD practices.

Domain-Driven DesignQunaragile development

0 likes · 8 min read

Insights into Domain-Driven Design Implementation at Qunar: Current Status, Challenges, and How to Get Started

Qunar Tech Salon

Jan 13, 2021 · Frontend Development

Qunar 2020 Technical Achievements and Article Collection

In 2020 Qunar's front‑end team explored multi‑platform adaptation, low‑code marketing, UI automation, security enhancements, and framework upgrades, publishing a series of technical articles that detail their solutions, performance gains, and practical insights for developers across the organization.

QunarReact Nativefrontend

0 likes · 6 min read

Qunar 2020 Technical Achievements and Article Collection

Qunar Tech Salon

Sep 14, 2020 · Operations

Qunar & Keep Technical Salon: DevOps Continuous Delivery and Test Environment Management Practices

The September 7, 2020 technical salon hosted by Qunar's infrastructure R&D team, in collaboration with Keep, gathered over 20 engineering experts to discuss DevOps continuous delivery, test environment management platforms such as Noah, Portal, MPortal, and Thanos, and share practical experiences and architectural choices.

Continuous DeliveryDevOpsKeep

0 likes · 5 min read

Qunar & Keep Technical Salon: DevOps Continuous Delivery and Test Environment Management Practices

Qunar Tech Salon

Aug 27, 2020 · Databases

Qunar Technology Carnival Interview Series: Insights on Hotel Flow Optimization, Database Architecture, and System Stability

The article presents a series of interviews from Qunar's Technology Carnival, featuring experts Liang Zhangping, Wang Zhufeng, and Zheng Jimin who discuss hotel booking flow improvements, database architecture comparisons and migration to PXC, and comprehensive system stability governance practices.

InfrastructureQunarTechnology Carnival

0 likes · 13 min read

Qunar Technology Carnival Interview Series: Insights on Hotel Flow Optimization, Database Architecture, and System Stability

Qunar Tech Salon

Jul 15, 2020 · Artificial Intelligence

Qunar Technology Carnival: Interviews on Search Optimization, AIOps Fault Localization, and Revenue Management

The Qunar Technology Carnival features in‑depth interviews with experts Wang Mingyou, He Yang, and Jia Ziyan who share practical experiences on search ranking improvements, AIOps‑driven fault localization, and data‑driven revenue management, highlighting challenges, solutions, and future directions in AI‑powered systems.

AIOpsQunarRevenue Management

0 likes · 10 min read

Qunar Technology Carnival: Interviews on Search Optimization, AIOps Fault Localization, and Revenue Management

dbaplus Community

Sep 2, 2019 · Operations

How Qunar Leverages AI‑Driven Fault Prediction and Health Management to Boost System Reliability

This article summarizes Zhang Yan's presentation at the 2019 Gdevops Global Agile Operations Summit, detailing Qunar's OPS goals, evolution of its automation platform, the adoption of PHM concepts from aerospace to internet services, and practical fault‑prediction workflows, metrics, and challenges for achieving higher availability.

AIOpsHealth ManagementPHM

0 likes · 24 min read

How Qunar Leverages AI‑Driven Fault Prediction and Health Management to Boost System Reliability

Qunar Tech Salon

Aug 6, 2019 · Information Security

Data Security Construction at Qunar: Practices and Experience

This article describes Qunar's comprehensive data security framework, covering data classification, warehouse access control, permission compliance, encryption, leakage detection, and the supporting institutional policies that together enable a small security team to protect large‑scale business data.

Access ControlQunardata classification

0 likes · 13 min read

Data Security Construction at Qunar: Practices and Experience

Qunar Tech Salon

Jul 3, 2019 · Operations

Analysis of International Roaming Network Issues and the QunarNDT Diagnostic Tool

This article presents a case study of an overseas user experiencing video upload failures due to international roaming, explains how Qunar's network detection tool (QunarNDT) was used to diagnose the issue, outlines the findings about domestic routing and timeout, and offers recommendations for improving user experience.

CDNQunardiagnostic tool

0 likes · 7 min read

Analysis of International Roaming Network Issues and the QunarNDT Diagnostic Tool

Qunar Tech Salon

Jun 25, 2019 · Databases

Recap of QInfrarch 2019: Technical Talks on Private Cloud, Real‑time Hotel Computing, Intelligent Ticket Customer Service, and OceanBase

The 2019 QInfrarch technical carnival in Suzhou gathered nearly 160 engineers from Qunar and partner companies to share in‑depth sessions on private cloud databases, real‑time hotel computation, AI‑driven ticket customer service, and OceanBase architecture, concluding with networking, tea breaks, and a lucky‑draw for attendees.

AI Customer ServiceOceanBaseQInfrarch

0 likes · 5 min read

Recap of QInfrarch 2019: Technical Talks on Private Cloud, Real‑time Hotel Computing, Intelligent Ticket Customer Service, and OceanBase

Efficient Ops

Sep 25, 2017 · Operations

How Qunar Scaled Application Ops Automation from Hundreds to Tens of Thousands of Servers

This article details Qunar's journey of automating application operations, covering the evolution of their host‑management system, unified monitoring/alert platform, and data‑interchange mechanisms that enabled the company to grow from a few hundred to over ten thousand servers with a stable six‑person ops team.

Data IntegrationQunarhost management

0 likes · 25 min read

How Qunar Scaled Application Ops Automation from Hundreds to Tens of Thousands of Servers

Qunar Tech Salon

Nov 11, 2016 · Backend Development

Evolution and Service Decomposition of Qunar's Payment System

This article chronicles the five‑year evolution of Qunar's payment platform from a tightly coupled monolithic system to a high‑concurrency, highly available distributed architecture, detailing the motivations, service‑oriented splits, core components, and checkout variations that enabled support for diverse payment scenarios.

Qunarbackend architecturepayment system

0 likes · 9 min read

Evolution and Service Decomposition of Qunar's Payment System

Qunar Tech Salon

Aug 20, 2016 · Artificial Intelligence

Personalized Demand Prediction and Ranking for Qunar App’s “You May Like” Card

This article describes how Qunar replaced a low‑click hot‑words card with a personalized “You May Like” recommendation card, detailing data collection, rule‑based and collaborative‑filtering association methods, learning‑to‑rank models (subjective Bayes, RankBoost, LambdaMart), training‑sample strategies, online experiments, evaluation metrics, and future plans including LSTM‑based sequence modeling.

Qunarcollaborative filteringmachine learning

0 likes · 14 min read

Personalized Demand Prediction and Ranking for Qunar App’s “You May Like” Card

Qunar Tech Salon

Aug 20, 2016 · Product Management

Fundamentals and Implementation of A/B Testing at Qunar

This article explains the basic principles of A/B testing, demonstrates a practical advertising experiment, describes effective experiment design, outlines Qunar's A/B testing platform architecture and workflow, and details statistical validation methods including Z‑test, minimum sample size calculation, and confidence interval estimation.

Platform ArchitectureQunarexperiment design

0 likes · 8 min read

Fundamentals and Implementation of A/B Testing at Qunar

Qunar Tech Salon

Aug 18, 2016 · Artificial Intelligence

Automatic Ticket Classification Using SVM and word2vec at Qunar

At Qunar, the data center algorithm team developed an automatic ticket classification system that combines Support Vector Machine with word2vec embeddings to handle high‑dimensional, low‑sample text data, achieving 89% accuracy and 80% recall while outlining the full machine‑learning pipeline from feature extraction to deployment.

QunarSVMText classification

0 likes · 7 min read

Automatic Ticket Classification Using SVM and word2vec at Qunar