Lambda fails to deploy when provisoned_executions > 0

This code fails to deploy with:

Provisioned Concurrency configuration failed to be applied. 
Reason: FUNCTION_ERROR_INIT_FAILURE

However, if I change provisioned_executions from 10 to 0, it deploys correctly.

    def addValidationFunction(self):
        
        self.validationDlq = Queue(self, 'validationDLQ')
        
        curTime = round(time.time())
        
        fnName = "IssFn{}".format(curTime)
        
        self.validationFunction = Function(self, fnName,
            runtime=Runtime.PYTHON_3_6,
            code=Code.asset('lambda/issuer'),
            handler='validation_function.lambda_handler',
            timeout=core.Duration.seconds(900),
            layers=[self.depLayer],
            dead_letter_queue=self.validationDlq
        )
        
        verName = "IssFnVer{}".format(curTime)
        
        self.validationVersion = self.validationFunction.add_version(name=verName, provisioned_executions=10)
        
        lambdaPolicy = PolicyStatement()
        lambdaPolicy.add_all_resources()
        lambdaPolicy.add_actions("secretsmanager:GetSecretValue")
        self.validationFunction.add_to_role_policy(lambdaPolicy)
        
        StringParameter(self, "issuerValidationFunctionArn",
             parameter_name="ISSUER_VALIDATION_FN_ARN",
             string_value=self.validationVersion.function_arn,
             simple_name=True
        )

Environment

• CLI Version :
• Framework Version: CDK 1.20.0
• OS : OSX
• Language : Python

Other

---

This is 🐛 Bug Report

[netroy]

@sblackstone this issue doesn’t seem specific to CDK. it’s likely that you’d see the same error working with cloudformation directly.

When you pre-provision a lambda, it is bootstrapped in the same call that creates the cloudformation resource. if the bootstrapping either fails or times out, FUNCTION_ERROR_INIT_FAILURE is thrown.

So, the question is, why is this code failing to initialize in a timely manner. Can you try some other code in this lambda, or perhaps a stripped-down version of your current code?

[SomayaB]

Closing this issue since there hasn’t been a response in a while. Feel free to reopen.