Question

A developer has enabled AWS X-Ray tracing on a high-traffic API that processes millions of requests per day. The X-Ray costs have grown significantly, but the team only needs detailed traces for a representative subset of normal traffic plus all requests that return errors. What is the most cost-effective way to achieve this?

Accepted Answer

Configure X-Ray sampling rules to trace a fixed rate and reservoir of normal requests, and add a rule with a higher rate for requests matching error conditions.

Answer

Disable X-Ray tracing on the service and rely solely on CloudWatch Logs for troubleshooting.

Answer

Reduce the CloudWatch Logs retention period so that X-Ray trace data is deleted sooner.

Answer

Increase the Lambda memory allocation so each trace completes faster and generates less data.