Chapter 4: Scaling Storage from MySQL Shards to TiDB Multi-Raft Architecture
Previous Chapter: Chapter 3 — Traffic Shield & Peak Shaving | Series Hub | Next Chapter: Chapter 5 — Full-Stack Observability Answer-first: Shopee eliminated relational database bottlenecks by migrating mission-critical checkout clusters from sharded MySQL to TiDB NewSQL distributed storage. Decoupling stateless SQL compute from Multi-Raft consensus storage across 96MB TiKV regions enables elastic scaling, automated split-merge rebalancing, and Google Percolator distributed transactions, guaranteeing sub-twenty-millisecond p99 write latency and zero data loss across availability zones. ...