> For the complete documentation index, see [llms.txt](https://awsinpractice.itassist.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://awsinpractice.itassist.com/aws-exploration/use-cases/multi-region-resiliency-with-active-active-setup/exploration-summary.md).

# Exploration Summary

* **Route 53** 
  * **Latency-Based Routing**: Inspect Route 53 records for latency-based routing policies for API Gateway endpoints.
  * **Health Checks**: Review health checks linked to CloudWatch alarms.
  * **Canaries**: Analyze canaries monitoring API Gateway endpoints and creating alarms for Route 53 health checks.
* **API Gateway**
  * **Endpoints and Integration**: Review regional API Gateway endpoints and their integration with backend services.
  * **Caching and Throttling**: Explore caching and throttling configurations.
  * **Logs and Monitoring**: Analyze API Gateway logs in CloudWatch
* **DynamoDB Global Tables**
  * **Replication Settings**: Check replication settings and ensure tables are properly configured across regions.
  * **Replication Status**: Review the health and synchronization status of global tables.
  * **Query Data Consistency**: Analyze data consistency settings (eventual or strong) across regions to meet application requirements.
  * **Latency**: Monitor replication latency between regions to ensure timely data synchronization.
  * **Conflict Resolution**: Inspect mechanisms for resolving simultaneous updates in different regions.
  * **Monitoring**: Review CloudWatch metrics such as replication errors, consumed capacity, and throttling rates.
  * **Backup and Restore**: Verify backup policies and cross-region restore capabilities for disaster recovery.
* **Aurora Global Database**
  * **Global Clusters**: Inspect the global clusters. Review details about primary and secondary region configurations.
  * **Replication Status**: Check the replication status and lag between regions. View associated metrics in the cluster details.
  * **Failover Readiness**: Explore the failover settings and verify the designated failover region.
  * **Reader Endpoints**: Review regional reader endpoints for low-latency reads and ensure their availability.
  * **Monitoring Metrics**: Open **CloudWatch** from the console to monitor replication lag, write IOPS, and other performance metrics.
  * **Data Consistency**: View Aurora's real-time consistency features in the cluster properties.
  * **Backups**: Inspect automated backup and snapshot settings across regions.
* **CloudWatch**
  * **API Gateway**: Monitor key metrics (latency, error rates, request counts) and review logs for performance and troubleshooting insights.
  * **Canaries**: Inspect canary execution results, success rates, and logs to validate endpoint performance and uptime.
  * **Alarms**: Review alarms for API Gateway and canary metrics, ensuring thresholds, notifications, and automated actions are properly configured.