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Youzan Coder

Jan 31, 2022 · Big Data

Youzan Coder's 2021 Top 10 Technical Articles by Read Count

In a festive New‑Year message, Youzan Coder’s WeChat account celebrates the Tiger Year by presenting its six‑year journey and unveiling the 2021 top‑10 most‑read technical articles—ranging from ClickHouse implementation to UI automation, TCP networking, low‑code testing, thread‑pool optimization, elite testing practices, mobile permission systems, search quality assurance, and proactive mobile monitoring—each with thousands of views, and encourages readers to keep learning in 2022.

ClickHouseTCP networkingUI automation

0 likes · 7 min read

Youzan Coder's 2021 Top 10 Technical Articles by Read Count

DataFunTalk

Nov 23, 2021 · Big Data

ClickHouse Practice at Youzan: Architecture, Deployment, and Future Plans

This article details Youzan's adoption of ClickHouse for real-time analytics, covering its evolution from Presto, Druid, and Kylin, the system's architecture, deployment strategies, use cases, performance characteristics, limitations, and future roadmap, including integration with Apache Doris and emerging big‑data trends.

ClickHouseOLAPYouzan

0 likes · 23 min read

ClickHouse Practice at Youzan: Architecture, Deployment, and Future Plans

Youzan Coder

Oct 18, 2021 · Backend Development

Traffic Replay Technology in YouZan: Automated Regression Testing for Mid-Platform Marketing Business

YouZan’s traffic‑replay platform records real production calls and replays them in test environments—both read‑only and mock‑write modes—to automatically verify thousands of marketing interfaces, visualize scenario coverage, capture low‑traffic cases, and has already enabled zero post‑launch failures while guiding future expansion into deeper coverage and performance testing.

Dubbo mockJVM sandboxYouzan

0 likes · 11 min read

Traffic Replay Technology in YouZan: Automated Regression Testing for Mid-Platform Marketing Business

Youzan Coder

Apr 28, 2021 · Operations

YouZan Low-Code Platform BOS: Testing Strategy and Implementation Guide

The guide explains YouZan’s low‑code BOS platform, its component‑based architecture, and a multi‑level testing methodology—including automated component, product, and workflow tests, traffic replay, performance checks, and a robust fallback mechanism—to ensure seamless migration and reliable operation of digitized business processes.

BOSYouzanbusiness operating system

0 likes · 9 min read

YouZan Low-Code Platform BOS: Testing Strategy and Implementation Guide

DataFunTalk

Feb 16, 2021 · Big Data

Understanding Presto: Architecture, Query Execution, and Youzan’s Practical Experience

This article explains Presto’s core architecture and low‑latency query execution process, describes how Youzan adopts Presto for various data‑platform scenarios, discusses the evolution of its deployment, and outlines the performance challenges and future enhancements such as Alluxio integration and session property management.

Distributed Query EnginePerformance OptimizationSQL

0 likes · 13 min read

Understanding Presto: Architecture, Query Execution, and Youzan’s Practical Experience

Youzan Coder

Jan 25, 2021 · Big Data

ClickHouse: Principles, Architecture, and Deployment at Youzan

The article explains ClickHouse’s high‑performance columnar OLAP design, its vectorized execution, sparse primary‑key indexes and MergeTree engines, contrasts it with ROLAP/MOLAP approaches, and details Youzan’s large‑scale deployment—including dual‑replica clusters, ingestion pipelines, routing architecture, current challenges, and future container‑based expansion plans.

ClickHouseMergeTreeOLAP

0 likes · 22 min read

ClickHouse: Principles, Architecture, and Deployment at Youzan

Youzan Coder

Dec 9, 2020 · Operations

A DevOps Engineer's Journey: From Middleware to Business Operations at YouZan

The article chronicles a YouZan DevOps engineer’s five‑year evolution from Alibaba‑based middleware duties to business‑operation leadership, highlighting the relentless pursuit of system stability through the 1‑minute detection, 5‑minute localization, 10‑minute resolution mantra, complex multi‑datacenter integrations, continuous learning, and a mindset of proactive problem‑solving.

DevOpsOperations EngineeringSaaS

0 likes · 7 min read

A DevOps Engineer's Journey: From Middleware to Business Operations at YouZan

Youzan Coder

Oct 16, 2020 · Mobile Development

ZanWeexModuleSDK: A General Solution for Native-Weex Interaction at Youzan

ZanWeexModuleSDK provides a unified solution for native-Weex interaction across Youzan apps, consolidating common modules like network, routing, config, logging, notifications, tracking, and account, allowing developers to focus on Weex code while handling custom logic via a manager and standardized callbacks.

AndroidMobile DevelopmentNative-JS Interaction

0 likes · 12 min read

ZanWeexModuleSDK: A General Solution for Native-Weex Interaction at Youzan

Youzan Coder

Jun 17, 2020 · Artificial Intelligence

Sunfish: An Integrated AI Platform for Model Training and Online Service Deployment at Youzan

Sunfish is Youzan’s integrated AI platform that unifies visual drag‑and‑drop model training, notebook‑based algorithm development, automated model management and one‑click publishing with a low‑latency, high‑availability “small‑box” inference service, enabling end‑to‑end deep‑learning workflows from data exploration to online recommendation and risk‑control deployment.

AI PlatformMLOpsSunfish

0 likes · 17 min read

Sunfish: An Integrated AI Platform for Model Training and Online Service Deployment at Youzan

Youzan Coder

Apr 1, 2020 · Big Data

Presto Implementation and Practice at YouZan: A Big Data Query Engine Journey

The article outlines Presto’s high‑performance, coordinator‑worker architecture and query flow, describes YouZan’s migration from mixed Hadoop deployment to dedicated low‑latency clusters, details challenges such as small‑file handling and regex backtracking with their fixes, and previews future enhancements like Alluxio integration, session property managers, and Ranger‑based multi‑tenant isolation.

FacebookHDFSPerformance Optimization

0 likes · 14 min read

Presto Implementation and Practice at YouZan: A Big Data Query Engine Journey

Youzan Coder

Mar 11, 2020 · Backend Development

Youzan Task Scheduling Platform (TSP): Design, Implementation, and Future Roadmap

Youzan’s Task Scheduling Platform (TSP) unifies its legacy cron and timeout systems into a modular, extensible framework that supports both timed and delayed tasks, offering per‑task rate limiting, sharding, isolation, retry policies, and a rich SDK, while its roadmap adds end‑to‑end monitoring, workflow orchestration, domain‑level clustering, transactional messaging, and dynamic task registration.

Rate LimitingShardingTSP

0 likes · 14 min read

Youzan Task Scheduling Platform (TSP): Design, Implementation, and Future Roadmap

Youzan Coder

Feb 14, 2020 · Cloud Native

Apollo Configuration Center Practice and Architecture at YouZan

The article explains how YouZan adopted Ctrip’s open‑source Apollo distributed configuration center—detailing its architecture, environment and cluster isolation, security enhancements for SaaS, namespace designs, client polling mechanisms, and planned upgrades such as WebSocket long‑polling and ETCD replacement.

ApolloConfiguration CenterEureka

0 likes · 15 min read

Apollo Configuration Center Practice and Architecture at YouZan

Youzan Coder

Dec 20, 2019 · Mobile Development

EnjoyDependence: Full Build Acceleration Solution for Android Componentized Projects

Youzan’s EnjoyDependence Gradle plugin dramatically speeds Android full builds—cutting compilation of their 450K‑line, Kotlin‑heavy project from over 15 minutes to under three—by managing dependencies, publishing AARs, and swapping source modules with prebuilt artifacts without altering project structure, while remaining stable and easy to adopt.

AAR PublishingAndroidBuild Optimization

0 likes · 12 min read

EnjoyDependence: Full Build Acceleration Solution for Android Componentized Projects

Youzan Coder

Dec 18, 2019 · Cloud Native

Youzan PaaS Innovative Meetup 2nd Edition: Service Mesh Technical Practices

The second Youzan PaaS Innovative Meetup in Hangzhou gathered experts from Tencent Cloud, Youzan, and Ant Financial to share Service Mesh technical practices—including TKE Mesh architecture, multi‑language Dubbo integration, Istio‑based gray releases, and large‑scale deployment strategies—followed by discussion and networking.

IstioMicroservicesService Mesh

0 likes · 3 min read

Youzan PaaS Innovative Meetup 2nd Edition: Service Mesh Technical Practices

Youzan Coder

Dec 13, 2019 · Cloud Native

Youzan PaaS Innovative Meetup 2nd Edition: Service Mesh Technical Sharing

The Youzan PaaS Innovative Meetup (2nd edition) in Hangzhou gathered experts from Tencent Cloud, Youzan and Ant Financial to share Service Mesh practices—including TKE Mesh architecture, Istio evolution, Dubbo integration, gray‑green releases, and large‑scale deployment strategies—aiming to build an active local PaaS technical community.

IstioMicroservicesService Mesh

0 likes · 3 min read

Youzan PaaS Innovative Meetup 2nd Edition: Service Mesh Technical Sharing

Youzan Coder

Dec 12, 2019 · Mobile Development

Youzan Mobile Technology Salon: Quality and Efficiency Focus

On December 7, Youzan’s Mobile Technology Salon gathered over 100 participants and six speakers to showcase the company’s quality‑and‑efficiency initiatives, including a mobile basic guarantee system and code‑coverage‑driven testing practices, with session videos released, full PPTs available, and a follow‑up PaaS meetup announced for December 21.

Code CoverageMobile DevelopmentPaaS

0 likes · 4 min read

Youzan Mobile Technology Salon: Quality and Efficiency Focus

Youzan Coder

Nov 27, 2019 · Big Data

Youzan Data Governance System Overview

Youzan’s data governance system treats petabyte‑scale data as a strategic asset, employing comprehensive collection, standardized management, lineage tracing, quality monitoring, and security auditing, then quantifies asset value through grading and dashboards, and delivers actionable services such as impact analysis and notifications, while addressing onboarding costs and value evaluation challenges.

Data AssetData qualitySecurity

0 likes · 16 min read

Youzan Coder

Nov 20, 2019 · Big Data

Understanding Youzan's Data Middle Platform: Architecture, Challenges, and Construction

He Fei explains how Youzan built a two‑layer data middle platform—combining a technology stack of offline, online and streaming components with an asset layer for cataloguing, quality, lineage and unified APIs—to tackle diverse business demands, technical complexity, and to enable cost‑optimized, reusable real‑time data services.

Data EngineeringYouzanbig data

0 likes · 15 min read

Understanding Youzan's Data Middle Platform: Architecture, Challenges, and Construction

Youzan Coder

Nov 1, 2019 · Mobile Development

Xiaojie's Journey: From Intern to Android Developer at Youzan

Xiaojie, a software engineering graduate, turned his Youzan internship into a full-time Android developer role by inventively cutting Android incremental compile time from minutes to seconds, earning praise for his proactive problem-solving, thriving in the company’s supportive, growth-focused culture.

Android DevelopmentIncremental CompilationRetail Technology

0 likes · 7 min read

Xiaojie's Journey: From Intern to Android Developer at Youzan

Youzan Coder

Mar 20, 2019 · Big Data

Evolution of Real-Time Computing at Youzan: From Storm to Flink and Future Directions

Youzan’s real‑time computing platform progressed from early Storm deployments through Spark Streaming to a Flink‑based architecture, adding unified task management, monitoring, and dedicated streaming clusters, while now pursuing SQL‑driven jobs, a Druid OLAP engine, and a future real‑time data warehouse.

Spark StreamingYouzanflink

0 likes · 14 min read

Evolution of Real-Time Computing at Youzan: From Storm to Flink and Future Directions