SQS

S3→R2 Cross-Cloud Disaster Recovery Sync Deep Architecture: A Complete Practice from Real-time Events to Incremental Synchronization

Based on JoyMini's real project experience, this article provides an in-depth analysis of the complete architectural design of an S3 to Cloudflare R2 cross-cloud disaster recovery synchronization system. It covers SQS real-time event-driven pipelines, Lambda concurrent streaming optimization, ETag incremental detection, DLQ+SNS failure notification mechanisms, and AWS CDK Infrastructure as Code best practices.