Author

Qunar Tech Salon

Qunar Tech Salon is a learning and exchange platform for Qunar engineers and industry peers. We share cutting-edge technology trends and topics, providing a free platform for mid-to-senior technical professionals to exchange and learn.

1.2k

Articles

Likes

2.3k

Views

Comments

Latest from Qunar Tech Salon

100 recent articles max

Qunar Tech Salon

Dec 20, 2023 · R&D Management

Digital Quality Measurement System at Qunar: Building, Implementing, and Operating a Comprehensive R&D Metrics Framework

This article details Qunar's end‑to‑end digital quality measurement system, describing how over 100 indicators were defined, filtered, and organized into a hierarchical model, how the platform ingests and visualizes data, and how continuous governance and PDCA cycles improve system stability and reduce complexity.

R&D metricscomplexity managementdigital measurement

0 likes · 21 min read

Digital Quality Measurement System at Qunar: Building, Implementing, and Operating a Comprehensive R&D Metrics Framework

Qunar Tech Salon

Dec 12, 2023 · Backend Development

System Slimming at Qunar Travel: Reducing Code and Service Footprint by 50% Using Observability and Automation

This article presents Qunar Travel's "system slimming" project, describing how observability techniques, a two‑stage strategy, and automated tooling were used to identify and remove unused services and code, achieving a 50% reduction in code size, a 26% cut in services, and measurable improvements in reliability and release efficiency.

Javabackend optimizationcode reduction

0 likes · 20 min read

System Slimming at Qunar Travel: Reducing Code and Service Footprint by 50% Using Observability and Automation

Qunar Tech Salon

Nov 22, 2023 · Operations

Optimizing Qunar's Monitoring System for Faster Fault Detection and Root‑Cause Analysis

This article details Qunar's comprehensive overhaul of its monitoring platform—introducing second‑level metrics, redesigning storage with VictoriaMetrics, optimizing client and server data collection, and building a root‑cause analysis tool—to dramatically reduce order‑related fault discovery time from minutes to under one minute.

MonitoringTSDBcloud-native

0 likes · 22 min read

Optimizing Qunar's Monitoring System for Faster Fault Detection and Root‑Cause Analysis

Qunar Tech Salon

Nov 20, 2023 · Databases

Design and Implementation of a High‑Performance Database Backup and Recovery System

This article presents a comprehensive analysis of the shortcomings of an existing database backup solution and details the architecture, high‑performance backup and restore mechanisms, dynamic throttling, storage abstraction, and experimental results of a newly designed, scalable backup‑recovery platform for MySQL databases.

Database BackupDynamic ThrottlingHigh Performance

0 likes · 33 min read

Design and Implementation of a High‑Performance Database Backup and Recovery System

Qunar Tech Salon

Nov 7, 2023 · Big Data

Building and Optimizing a Distributed Tracing System for Qunar Travel: APM Architecture, Performance Bottlenecks, and Solutions

This article details Qunar Travel's end‑to‑end design and optimization of a distributed tracing system within its APM platform, covering architecture choices, log‑collection and Kafka transmission bottlenecks, Flink task tuning, and the business value derived from trace and metric analysis.

APMFlinkPerformance optimization

0 likes · 22 min read

Building and Optimizing a Distributed Tracing System for Qunar Travel: APM Architecture, Performance Bottlenecks, and Solutions

Qunar Tech Salon

Oct 13, 2023 · Backend Development

Domain‑Driven Design and Microservice Architecture Evolution at Qunar.com

This presentation details Qunar.com's journey from a monolithic system to a service‑oriented, platform‑based architecture, emphasizing domain‑driven design principles, architectural evolution paths, reconstruction strategies, the adoption of the COLA framework, and the resulting improvements in organization and development efficiency.

COLA frameworkDomain-Driven Designsystem refactoring

0 likes · 21 min read

Domain‑Driven Design and Microservice Architecture Evolution at Qunar.com

Qunar Tech Salon

Sep 28, 2023 · Operations

Automated Root Cause Analysis for Flight Ticket Transaction Interception at Qunar: Design, Algorithm, and Performance Optimizations

This article describes how Qunar implemented an automated root‑cause analysis system for flight‑ticket transaction interception, detailing the problem background, system research, a custom algorithm focusing on explanatory power, performance optimizations that reduced analysis time from five minutes to under ten seconds, and the resulting operational improvements.

algorithmoperationsroot-cause analysis

0 likes · 13 min read

Automated Root Cause Analysis for Flight Ticket Transaction Interception at Qunar: Design, Algorithm, and Performance Optimizations

Qunar Tech Salon

Sep 14, 2023 · Frontend Development

Micro‑Module Framework for Frontend Code Reuse and Efficient Deployment

This article describes the design, implementation, and benefits of a low‑intrusion micro‑module framework that enables cross‑stack code reuse, dynamic loading, fast deployment, and robust monitoring for large‑scale front‑end applications, while addressing challenges such as React version compatibility and incremental packaging.

Module FederationReActcode-reuse

0 likes · 18 min read

Micro‑Module Framework for Frontend Code Reuse and Efficient Deployment

Qunar Tech Salon

Aug 25, 2023 · Big Data

Customer Data Platform (CDP) at Qunar Travel: Architecture, Construction Practices, and Business Value

This article presents a comprehensive case study of Qunar Travel's Customer Data Platform (CDP), detailing its business background, operational pain points, architectural design, tag production and quality processes, real‑time labeling, crowd selection techniques, deployment safeguards, measurable business impact, and future development directions.

CDPCustomer DataQunar Travel

0 likes · 20 min read

Customer Data Platform (CDP) at Qunar Travel: Architecture, Construction Practices, and Business Value

Qunar Tech Salon

Aug 15, 2023 · Operations

Full-Process Automated Testing Platform for Airline Ticket System: Design, Implementation, and Operations

This article describes the design, implementation, and operational management of a full‑process automated testing platform for airline ticket systems, covering background analysis, goals, measurement metrics, platform architecture, case handling, result verification, quality gates, and future improvement plans to enhance system stability and quality.

QAautomated testingcase management

0 likes · 13 min read

Full-Process Automated Testing Platform for Airline Ticket System: Design, Implementation, and Operations