Gracefully handle failed AWS Lambda events from Amazon DynamoDB Streams
Database Blog
This article discusses a new approach to handling failed events in AWS Lambda when processing Amazon DynamoDB streams, highlighting the use of Amazon S3 as a failure destination.
- AWS Lambda now supports sending failed stream events directly to S3
- S3 provides long-term storage of complete event payloads after retry attempts fail
- Advantages over traditional dead-letter queues include: • Full event payload retention • Flexible storage policies • Ability to replay or analyze failed events
- Recommended configuration includes: • Bounded retry attempts • Batch error splitting • S3 as failure destination
The solution enables more robust event-driven architectures by providing comprehensive failure handling and event preservation for DynamoDB stream processing.
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