Monitor custom serverless metrics with the Datadog Lambda extension

This article discusses how to improve observability of AWS Lambda functions using remote instrumentation—specifically, collecting data outside of the Lambda execution environment. By leveraging tools like AWS X-Ray and OpenTelemetry, developers can gain faster, more detailed insights into Lambda performance and errors without impacting function cold starts or incurring extra costs within the function itself. This approach allows for proactive monitoring and quicker troubleshooting of serverless applications.