Multi Master
Aurora Replicas vs MySql Replicas
Global Aurora
| Feature | Aurora Global Database | Cross-Region Read Replica |
|---|---|---|
| Use Case | Disaster recovery, low-latency reads | Read scaling |
| Regions Supported | Up to 5 regions | One region per replica |
| Replication Lag | <1 second (storage-based) | Minutes (logical) |
| Write Availability | Only one primary | Only primary writes |
| Automatic Failover? | ✅ Yes | ❌ No (manual) |
| Promotion to Primary? | ✅ Yes (automatic or manual) | ✅ Yes (manual only) |
| Replication Type | Storage-level | Logical |
| Cost | Higher (due to storage replication) | Lower |
