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.
The article details Qunar's user‑experience digital platform, explaining its background, measurement model, metric scoring, data‑collection mechanisms for Android and iOS, and the operational plan that drives continuous improvement across teams and products.
This article details Qunar’s migration from a traditional Prometheus‑based monitoring stack to VictoriaMetrics, describing the challenges of large‑scale container metrics collection, the architectural redesign using VM‑Cluster, vmagent, and vmalert, and the performance improvements achieved after full replacement.
This article details how Qunar improved its Serverless FAAS platform by introducing Node.js worker_threads for parallel computation, designing a thread‑pool with shared buffers and postMessage communication, and implementing comprehensive cache pre‑heating and governance, resulting in a 72% reduction in P99 latency and more stable service performance.
This article presents a technical case study of Qunar's low‑code platform, detailing the current cross‑platform rendering challenges, the feasibility analysis of replacing H5 with React Native, the design of a Babel‑based code transformer, runtime integration, performance results, and future plans.
This article describes the background, design decisions, architecture, core concepts (Serverless, BFF, FAAS), implementation details, performance results, and future plans of the internally built Seras platform that enables front‑end teams to write cloud functions without managing servers, improving code reuse, traceability, and deployment speed.
This article describes the layered architecture of Qunar's next‑generation database automation platform, outlines the design goals for secure Agent/Plugin‑Server communication, compares communication and encryption methods, and details the authentication and request flow using symmetric encryption and token‑based security.
This article details the investigation of a 2% timeout rate in a billion‑request‑per‑day ticket pricing service, identifies GC‑induced stop‑the‑world pauses as the main cause, and demonstrates how switching from ParNew+CMS to G1 and finally to ZGC dramatically reduces latency and timeout rates.
This article presents a comprehensive case study of how Qunar's hotel supply‑chain team applied Domain‑Driven Design to restructure a decade‑old, highly coupled hotel information system, detailing the problem analysis, DDD rationale, evolutionary transformation process, architectural principles, implementation results, and lessons learned.
This chapter traces the evolution of enterprise technical architecture from monolithic to distributed, microservice, and middle‑platform models, illustrates Ziroom's ten‑year journey toward cloud‑native and DevOps practices, and analyzes the stability, efficiency, and process challenges encountered along the way.
The article presents the TARS UI automation platform, analyzes its core performance indicators and the problems uncovered, and details a comprehensive redesign that introduces automatic case recording, tag generation, data mocking, smart assertions, and an upgraded cloud‑based testing infrastructure to improve coverage, accuracy, and efficiency for mobile app releases.
