The Lambda function outputs messages to the following log group:.
/aws/lambda/<Lambda function name>
<Lambda Function Name> is the name of the Lambda function configured for switcher. For details, please refer to "A.2.4.1 Configuring AWS Lambda" of "PRIMECLUSTER Installation and Administration Guide 4.6 Cloud Services".
Note that a log group is the unit of log management in Amazon CloudWatch Logs (the Log Management Service). For more information about log groups, see the Amazon CloudWatch Logs User Guide.