custom transaction

Dada Group Technology

Dec 16, 2022 · Backend Development

Refactoring a Monolithic System: Database Splitting, Application Decomposition, and Data‑Access Control

This article describes a step‑by‑step migration of a large monolithic Java application into vertically‑split micro‑services, covering database sharding into nine business databases, multi‑datasource and custom transaction implementations, application splitting, routing, RPC generation, and the measures taken to ensure data safety and low‑risk rollout.