Python Lambda AWS Parameters and Secrets Lambda Extension timeout randomly

Question

Hi, I have set up a Python 3.10 Lambda that has attached [Secret Layer](https://docs.aws.amazon.com/secretsmanager/latest/userguide/retrieving-secrets_lambda.html) and NO VPC attached.
- The timeout time is 20 seconds
- The execution normally takes 1-3seconds
- All Secret Layer variables aren't set, so the default

I have noticed that randomly (1 in ~10) the execution timeout. I have enabled the `PARAMETERS_SECRETS_EXTENSION_LOG_LEVEL` to DEBUG and checked in CloudWatch logs:

```
[AWS Parameters and Secrets Lambda Extension] 2023/05/24 14:35:16 INFO ready to serve traffic
[AWS Parameters and Secrets Lambda Extension] 2023/05/24 14:35:16 DEBUG Caching secret with key /secretsmanager
2023-05-24T14:35:36.156Z b6b0... Task timed out after 20.05 seconds
```

Normally after the `DEBUG Caching secret with key /secretsmanager...` line, the source code is executed and the function succeds.
But in some cases the source code doesn't even start , so I can't write any logs inside because it doesn't get there

Any help is appreacited,

Answer

Assuming that you are using the AWS SDK, there are three reasons why retry and timeout issues occur when invoking a Lambda function with an AWS SDK:

A remote API is unreachable or takes too long to respond to an API call.
The API call doesn't get a response within the socket timeout.
The API call doesn't get a response within the Lambda function's timeout period.

For more information, please look at the following URL:

https://repost.aws/knowledge-center/lambda-function-retry-timeout-sdk

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Answer

Please take a look at the following resolution:

https://repost.aws/knowledge-center/lambda-troubleshoot-invocation-timeouts

Please inform me if my answer was satisfactory by accepting my response with an up-vote.

Python Lambda AWS Parameters and Secrets Lambda Extension timeout randomly

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