AWS Lambda INIT_REPORT Runtime.ExitError in go app

Question

I am using Lambda web adapter to run a Image from AWS-ECR. I am getting the below error during invocation. When this error is encountered, Lambda is invoked again.

Cloudwatch logs:

EXTENSION Name: lambda-adapter State: Ready Events: []

INIT_REPORT Init Duration: 668.11 ms Phase: init Status: error Error Type: Runtime.ExitError

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My lambda is invoked and ran twice, the first one with the Init Phase Error. My binary is a compiled go app and the docker file content is as below:

FROM public.ecr.aws/lambda/provided:al2
COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.7.1 /lambda-adapter /opt/extensions/lambda-adapter
COPY main /main
ENTRYPOINT [ "/main" ]  

Note that INIT_REPORT error is logged after my app execution ended.

Any help resolving this is appreciated. Please reply for questions.

Edit/Update: My function returns in less than 10 seconds as it is expected. After this I no longer want to run the app. In Init Phase Lambda tries to run this and since the execution completes, it returns and this is the cause of this error.

Now I would want a way to run the app that is triggered by a cron schedule, only once, Init Phase or Invoke Phase doesn't matter.

Answer 1

This error means your go app crashed. You need to find out why. Could you enable debug logs for you go app? And post the logs here.