Lambda Function is abandoned

Why do I see this?

One of your functions didn’t have any invocations for a long time.

What does this mean?

You have deployed a function to AWS, but it’s never invoked.

This can be a bug, and the function should actually be called and do important work, or it can simply be that the function isn’t required anymore.

In any case, this event tells you to inquire about the reasons, every resource you provision on AWS is a potential security risk, so you should delete functions you don’t need.

How do I fix ”Lambda Function is abandoned“?

Check if a bug prevents the function from being called or if the function isn’t needed anymore and can be deleted.

Bugs can be in your code, but they can also be related to the Lambda function’s event configuration. If your function doesn’t get an event but should, you should fix this.

Also, deleting unused resources is a good practice that helps to prevent security breaches, so only deploy functions you’re actually using.

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This rule resolution is part of the Dashbird Serverless Well-Architected Reports tool for AWS. Dashbird features a collection of rules and checks continuously applied to your infrastructure, surfacing ways to improve it. Catch errors and inefficiencies in Lambda and learn the best practice rules for AWS Lambda.