AWS Step Functions Execution scenarios with 'Task timed out' scenarios When Calling Lambda
This might be a silly question, but I'm experiencing an scenario with AWS Step Functions where my state machine is failing with a 'Task timed out' behavior when it tries to invoke a Lambda function. The Lambda function is designed to process a batch of data from an S3 bucket, and the timeout for the Lambda function is set to 30 seconds. However, I’ve noticed that the execution sometimes takes longer than that, especially with larger data sets. My state machine configuration is as follows: ```json { "Comment": "A Hello World example of the Amazon States Language", "StartAt": "ProcessData", "States": { "ProcessData": { "Type": "Task", "Resource": "arn:aws:lambda:us-east-1:123456789012:function:ProcessDataLambda", "TimeoutSeconds": 35, "Retry": [ { "ErrorEquals": ["Lambda.ServiceException", "Lambda.AWSLambdaException", "Lambda.SdkClientException"], "IntervalSeconds": 2, "MaxAttempts": 3, "BackoffRate": 2.0 } ], "End": true } } } ``` I've already increased the Lambda timeout to 30 seconds, and the Step Function's timeout to 35 seconds to allow for retries. Additionally, I added retries in my state machine configuration, but I'm still getting the same timeout behavior. When I test the Lambda function directly in the console with smaller data sets, it works perfectly fine. However, it seems to unexpected result when invoked from Step Functions with larger payloads. I’ve tried enabling Lambda logging and checking CloudWatch for more insights, but the logs don’t provide much information to help diagnose the scenario. The behavior I see in the Step Functions execution history is: ``` Task timed out after 30.00 seconds ``` Is there a best practice for handling longer processing times in Step Functions or Lambda that I'm missing? How can I avoid this timeout scenario in my workflow? Am I missing something obvious?