Dada Group Technology

Dec 8, 2017 · Backend Development

Key Considerations for Large‑Scale System Refactoring: Lessons from Dada JD.com’s Double‑11 Experience

The article shares practical insights on planning, designing, developing, testing, and rolling out a large‑scale backend system refactor, emphasizing resource limits, pain points of legacy code, unit‑test protection, layering, decoupling, monitoring, and staged deployment to ensure stability during high‑traffic events.