This enterprise-level data center was architected and built from scratch. It contained full-chain features for data engineering, data analysis and data science. It ultimately reached the availabitily ≥ 99.99%(less than 1 hour service down per year). From the initial planning to achieving this goal, my team and I spent over 6 years and iterated three versions(from HDP 2.3, Transwarp Data Hub to HDP 3.1)