AWS Step Functions scenarios with 'Task timed out after 3 seconds' Despite Increased Timeout Settings
Hey everyone, I'm running into an issue that's driving me crazy. I'm working on a personal project and I'm working on a serverless application using AWS Step Functions and AWS Lambda. I have a state machine that executes a Lambda function, but I'm working with a timeout scenario. The function is designed to process incoming records from Kinesis streams, and I've set both the Lambda timeout and the Step Function timeout to 30 seconds. However, I still see the behavior message 'Task timed out after 3 seconds' when the Step Function is executed. Here’s the relevant part of my state machine definition: ```json { "Comment": "A Hello World example of the Amazon States Language using a Pass state", "StartAt": "ProcessRecords", "States": { "ProcessRecords": { "Type": "Task", "Resource": "arn:aws:lambda:us-east-1:123456789012:function:ProcessKinesisRecords", "TimeoutSeconds": 30, "End": true } } } ``` The Lambda function configured for this state is as follows: ```python import json import time def lambda_handler(event, context): # Simulating some processing time time.sleep(20) # Should be well within the timeout return {'statusCode': 200, 'body': json.dumps('Processed')} ``` I also made sure to increase the Lambda function’s timeout setting to 30 seconds in the AWS console. I'm using the AWS SDK for Python (Boto3) version 1.18.0 to trigger the Step Function. When I start the execution, I can see the logs from the Lambda function indicating that it started processing, but it doesn't complete before the timeout behavior occurs. I've tried redeploying the Lambda function and the Step Function and even increased the timeout for the Step Function to 60 seconds, but I continue to encounter the same timeout behavior. What am I missing here? How can I resolve this scenario to ensure that my Lambda function has enough time to complete its execution without timing out? I'm working on a application that needs to handle this. I'd really appreciate any guidance on this. How would you solve this?