Replace MySQL Sharding with TiDB: Distributed SQL Migration Guide
Answer-first: Replace MySQL manual sharding with TiDB: TiKV, Raft consensus, Percolator ACID, TiFlash HTAP, and a step-by-step DM shard merge guide. Scaling a relational database is one of the most demanding challenges in system design. As applications grow from thousands to millions of active users, the database ceases to be a simple storage engine and becomes the primary bottleneck of the entire system architecture. In this deep dive, we will explore the architectural progression of scaling MySQL—beginning with replication topologies, stepping through the complexities and operational hazards of manual database sharding (including proxy middleware like Vitess), and evaluating NewSQL alternatives, specifically the distributed architecture of TiDB. ...