Set retry amount on a Lambda function

Question

My understanding is that a Lambda function retry default is 2.  That is if the function fails, Lambda will execute 2 invocations of the function.  
Is there a way in the Python function to set the max reties on a specific Lamba function?

Accepted Answer

Thank you Didier.  This is what I was looking for!  A succinct and direction answer.  Appreciated!

Answer

Hi Petrus,

This is the way to  change the number of automatic retry for the async invocation of a Lambda with the CLI

```
aws lambda update-function-event-invoke-config --function-name error \
--destination-config '{"OnFailure":{"Destination": "arn:aws:sqs:us-east-2:123456789012:destination"}}'
```

It's all detailed on this page: https://docs.aws.amazon.com/lambda/latest/dg/invocation-async.html

In Python, you can do same with `Lambda.Client.update_function_configuration(**kwargs)`: all details at https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/lambda/client/update_function_event_invoke_config.html

```
response = client.update_function_event_invoke_config(
    FunctionName='string',
    Qualifier='string',
    MaximumRetryAttempts=123,
    MaximumEventAgeInSeconds=123,
    DestinationConfig={
        'OnSuccess': {
            'Destination': 'string'
        },
        'OnFailure': {
            'Destination': 'string'
        }
    }
)
```

`MaximumRetryAttempts` is the parameter that you want to configure

Best,

Didier

Set retry amount on a Lambda function

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