Amazon CloudFront | Lambda@Edge

Question 1

Do you have options for monitoring and alarming metrics in real time?

Lambda@Edge

Amazon CloudFront | Networking & Content Delivery

Answer 1

You can monitor, alarm and receive notifications on the operational performance of your Amazon CloudFront distributions within just a few minutes of the viewer request using Amazon CloudWatch. CloudFront automatically publishes six operational metrics, each at 1-minute granularity, into Amazon CloudWatch. You can then use CloudWatch to set alarms on any abnormal patterns in your CloudFront traffic. To learn how to get started monitoring CloudFront activity and setting alarms via CloudWatch, please view our walkthrough in the Amazon CloudFront Developer Guide or simply navigate to the Amazon CloudFront Management Console and select Monitoring & Alarming in the navigation pane.

Question 2

What is Lambda@Edge?

Lambda@Edge

Amazon CloudFront | Networking & Content Delivery

Answer 2

Lambda@Edge allows you to run code at global AWS edge locations without provisioning or managing servers, responding to end users at the lowest network latency. You just upload your Node.js code to AWS Lambda and configure your function to be triggered in response to Amazon CloudFront requests (i.e., when a viewer request lands, when a request is forwarded to or received back from the origin, and right before responding back to the end user). The code is then ready to execute at every AWS edge location when a request for content is received, and scales with the volume of requests across CloudFront edge locations. Learn more in our documentation.