I have a step function that failed in the last step, that's a lambda function that timed out. I could run the lambda only, but is there a way to run the last step of the step function (as in a retry for that particular step).
I don't want to rerun the whole thing, because the everything else is correct and relies on daily data. Thanks
Yes, you can retry an individual step function task.
This example retries a lambda task 2 times with backoff, including after a lambda timeout error:
{
"StartAt": "LambdaTask",
"States": {
"LambdaTask": {
"Next": "Success",
"Retry": [
{
"ErrorEquals": ["States.ALL"], // can also narrow this to specific errors - a timeout error is "Lambda.Unknown"
"MaxAttempts": 2, // How many times to retry
"IntervalSeconds": 2, // How many seconds to wait initially before retrying.
"BackoffRate": 3 // Multiplication for how much longer the wait interval gets on every retry.
}
],
"Catch": [{ "ErrorEquals": ["States.ALL"],"Next": "Fail"}
],
"Type": "Task",
"Resource": "arn:aws:states:::lambda:invoke",
"Parameters": {
"FunctionName": "arn:aws:lambda:us-east-1:XXXXXXXXXX",
"Payload.$": "$"
}
},
"Success": { "Type": "Succeed" },
"Fail": { "Type": "Fail" }
}
}