Zero-Downtime Multi-Region Database Migrations at 50,000 TPS
A comprehensive blueprint on transitioning high-frequency financial ledgers from single-region relational databases to distributed CockroachDB clusters with zero packet loss and zero write lock contention.
- 2-Phase dual-write choreography with Kafka outbox pattern
- Mitigating consensus roundtrips in cross-continental WANs
- Automated rollback safety nets with shadow validation