Implement multi-Region endpoint routing for Amazon Aurora DSQL

This article demonstrates how to implement automatic multi-Region endpoint routing for Amazon Aurora DSQL using a custom Python client-side library integrated with Amazon Route 53 health checks.

• Aurora DSQL provides dedicated regional endpoints with strong consistency across Regions
• Solution uses Route 53 health checks to monitor endpoint availability every 30 seconds
• Automatically routes connections to lowest-latency healthy endpoint without manual intervention
• Supports automatic failover when primary endpoint becomes unreachable
• Client-side library measures latency and ranks endpoints based on performance metrics
• Integrates seamlessly into applications as drop-in replacement for database connections
• Sample code available on GitHub with setup, testing, and failover simulation scripts
• Reduces operational complexity by targeting only affected database connections during disruptions

This solution enables applications to maintain continuous database access across multi-Region Aurora DSQL clusters with automatic intelligent routing and failover capabilities.