default cloudwatch loggroup name contains undesired region code.

Question

A default logroup name for lambda is expected to be aws/lambda/. But I find region code **us-east-1** , placed before function name, loggroup name appears like aws/lambda/us-east-1.. This issue is with one lambda loggroup Other lambda loggroups are fine. I tried to use LoggingConfig in cft templates to correct loggroup. a new loggroup with correct name created but lambda don't sends logs in that. still uses loggroup with region code.
Please suggest the probable root casue for this bahaviour.

Accepted Answer

Hi,

Is that a Lambda@Edge function?
See [Lambda@Edge logs](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/edge-functions-logs.html) and [Aggregating Lambda@Edge Logs](https://aws.amazon.com/blogs/networking-and-content-delivery/aggregating-lambdaedge-logs/) for more details if my guess was correct.

Regards.

Answer

Hello.

Can you confirm that the output destination log group has been changed from the console of the target Lambda?  
https://docs.aws.amazon.com/lambda/latest/dg/monitoring-cloudwatchlogs.html

Also, is the IAM policy attached to the Lambda IAM role configured to output logs to a custom log group?

default cloudwatch loggroup name contains undesired region code.

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