amazon web services - What is the maximum number of event source mappings per AWS Lambda?

I cannot find this limitation listed anywhere in the AWS Documentation for maximum number of event sources to trigger one Lambda.

I have a Lambda which will be triggered by an indefinitely growing number of S3 Buckets. Obviously this will only work if the maximum number of buckets exceeds the maximum number of triggers. Is there a maximium? If so, what is it, and can it be increased?

2 Answers

  1. Johnny- Reply

    2019-11-13

    I just ran into a limit. I added 60 CloudWatch triggers to a Lambda function and when I tried adding one more trigger, I got an error saying "The final policy size (20643) is bigger than the limit (20480). (Service: AWSLambda; Status Code: 400; Error Code: PolicyLengthExceededException;"

Leave a Reply

Your email address will not be published. Required fields are marked *

You can use these HTML tags and attributes <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>