BanTech Think Tank

Dec 15, 2025 · Big Data

How a Distributed Big‑Data Architecture Turned Million‑Query‑Per‑Day Account Lookups from Minutes to Milliseconds

The article details how China Postal Savings Bank rebuilt its core account transaction query system with a distributed micro‑service and big‑data stack, achieving millisecond‑level responses for over ten years of data, boosting performance by 700% and enabling new intelligent services.