Lambdas not invoked during a certain period of time

Question

here is my problem:

I have about 1400 lambdas in an AWS account and I would like to know how to measure the lambdas that haven't been invoked during the last X days range. I've tried to do it using cloudwatch but had no success. Any ideas?

Answer 1

The quickest way for you to accomplish this would likely be with GitHub: Enumerate Lambda functions across all regions with useful metadata. It returns the last invocation time to detect "dead Lambdas".

There is also this AWS blog post that shows an example: Automating the discovery of unused AWS Lambda functions | AWS Cloud Operations & Migrations Blog