dbaplus Community

Apr 10, 2025 · Databases

How to Seamlessly Migrate MongoDB to New Data Stores Without Downtime

This article presents a complete, step‑by‑step plan for migrating a legacy MongoDB‑based system to alternative data stores—including MySQL, Elasticsearch, and JD’s JImKV—while ensuring zero service interruption through careful scope analysis, DAO refactoring, dual‑write synchronization, gray‑release rollout, and robust monitoring and rollback mechanisms.