This article explains how to extend Sentinel's flow‑control capabilities in a Spring Cloud Gateway to implement traffic replication, covering Sentinel fundamentals, its slot‑chain architecture, custom filter code, configuration steps, and practical usage for testing and load‑testing with real traffic.
This article examines the challenges of high‑cost test case maintenance and low‑efficiency regression, then details how HTTP and microservice traffic replication, automatic seed case generation, and integrated CI/CD‑driven interface and process automation can dramatically improve testing speed, coverage, and quality.
The article describes JD's traffic replication and replay platform, explaining its background, the concepts of traffic copying and replay, detailed platform architecture and features, normalised load testing workflow, dynamic regression testing, operational results, current limitations, and future improvement directions.
The Fault‑Drill platform for hotel back‑end services combines real‑time traffic replication to shadow clusters with UI‑driven fault injection via a java‑agent, enabling developers to validate incident‑response plans, measure latency impacts, and reduce MTTR by testing normal and abnormal conditions on live traffic.
This guide explains how tcpcopy copies live traffic to test machines, details its installation, demonstrates performance testing commands, and presents results and monitoring graphs to show the impact of replicated traffic on backend and test servers.
The article explains how TCPCopy can duplicate live TCP/UDP traffic for testing, describes the challenges of selective traffic copying, and details the design and implementation of DubboCopy—a Netty‑based proxy that lowers usage barriers, supports multi‑dimensional traffic selection, and monitors performance metrics with minimal resource overhead.
Tcpcopy is a distributed online pressure testing tool that copies live traffic to test machines, enabling realistic simulation of production environments without deploying new code, and the article explains its principles, code details, deployment steps, advanced usage, and real‑world application at Yitao.
