Trouble with AWS Step Functions Retries optimization guide as Expected with Lambda Integration
I'm migrating some code and I'm wondering if anyone has experience with I'm relatively new to this, so bear with me... I'm currently working on an AWS Step Function that integrates with a Lambda function, and I've run into issues with the retry mechanism not behaving as expected. My Step Function is designed to handle transient errors from Lambda, but it seems the retries are not happening as configured. Here's the relevant portion of my state machine definition: ```json { "Comment": "A Hello World example of the Amazon States Language.", "StartAt": "HelloWorld", "States": { "HelloWorld": { "Type": "Task", "Resource": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction", "Retry": [ { "ErrorEquals": ["Lambda.ServiceException", "Lambda.AWSLambdaException"], "IntervalSeconds": 2, "MaxAttempts": 3, "BackoffRate": 2.0 } ], "End": true } } } ``` The Lambda function sometimes throws a `Lambda.ServiceException`, which I thought would trigger the retry, but it just fails immediately and I see the behavior logged in CloudWatch without any retries being attempted. I've verified that the errors thrown are indeed in the `ErrorEquals` list, and the IAM role attached to the Step Function has the necessary permissions. I've also looked into the CloudWatch logs for both the Step Function and the Lambda function but didn’t see any indication of the retry attempts being initiated. My Lambda function is using Node.js 14.x and I'm deploying with the AWS CDK version 2.3.0. Could there be something wrong with the way I'm configuring the retries or is there a known scenario with Step Functions and Lambda that I might be missing? Any guidance would be appreciated! Any help would be greatly appreciated! Has anyone else encountered this? For reference, this is a production REST API. Any advice would be much appreciated.