AWS Step Functions with Lambda: 'Task timed out after 60 seconds' scenarios despite higher timeout setting
I'm working on a project and hit a roadblock. I'm currently implementing a workflow using AWS Step Functions with a Lambda function that processes data from an S3 bucket. The function is designed to handle large files, but I keep working with a 'Task timed out after 60 seconds' behavior, even though I set the timeout for the Lambda function to 120 seconds. Here's the relevant configuration for my Lambda function: ```json { "FunctionName": "MyProcessingFunction", "Timeout": 120, "Handler": "index.handler", "Runtime": "nodejs14.x", "Role": "arn:aws:iam::123456789012:role/MyLambdaRole" } ``` In my Step Functions definition, I'm invoking the Lambda function like this: ```json { "Comment": "A description of my state machine", "StartAt": "ProcessData", "States": { "ProcessData": { "Type": "Task", "Resource": "arn:aws:lambda:us-east-1:123456789012:function:MyProcessingFunction", "TimeoutSeconds": 60, "End": true } } } ``` I've tried adjusting the `TimeoutSeconds` value in my state machine definition to match the Lambda function's timeout, but I still encounter the same timeout behavior. I also checked the CloudWatch logs for my Lambda function, and it seems to be processing data but failing just before completion. Additionally, I verified that the Lambda function is not going over the allocated memory limit, which is set to 256 MB. How can I ensure that my Step Function waits long enough for the Lambda function to complete its execution? Is there a specific setting I'm missing, or is there a best practice for handling this scenario? Any pointers in the right direction? What are your experiences with this?