What does this AWS Solution do?
Amazon Simple Storage Service (Amazon S3) offers cross-region replication, a bucket-level feature that enables automatic, asynchronous copying of objects across buckets in different AWS Regions. Currently, AWS customers can retrieve the replication status of their objects manually or use an Amazon S3 inventory to generate metrics on a daily or weekly basis. To help customers more proactively monitor the replication status of their Amazon S3 objects, AWS offers the Cross-Region Replication Monitor (CRR Monitor) solution.
This solution automatically checks the replication status of Amazon S3 objects across different AWS Regions, providing near real-time metrics as well as failure notifications to help customers proactively identify failures and troubleshoot problems. This feature helps companies minimize latency in accessing objects in different geographic regions, meet compliance requirements, and for operational purposes.
AWS Solution overview
AWS offers a simple solution that automatically monitors the replication status of your Amazon S3 objects. The diagram below presents the CRR Monitor architecture you can deploy in minutes using the solution's implementation guide and accompanying AWS CloudFormation template.
Cross-Region Replication Monitor architecture
When an object is added to the source Amazon S3 bucket, AWS CloudTrail triggers an Amazon CloudWatch event that delivers the status information to an Amazon SNS topic. Then, Amazon SNS sends the data to an Amazon SQS queue.
When a replicated object is added to the destination bucket, it triggers an Amazon CloudWatch event and Amazon SNS, and status information is sent back to the Amazon SQS queue in the monitor region. Finally, AWS Lambda functions process the data in the queue to verify that the object was replicated successfully.
Near real-time metrics
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