# Amazon CloudWatch Logs
Amazon CloudWatch Logs

Research and Engineering Studio creates the following log groups in CloudWatch during installation. See the following table for default retentions:


| CloudWatch Log groups | Retention | 
| --- | --- | 
| /aws/lambda/<installation-stack-name>-cluster-endpoints | Never expire | 
| /aws/lambda/<installation-stack-name>-cluster-manager-scheduled-ad-sync | Never expire | 
| /aws/lambda/<installation-stack-name>-cluster-settings | Never expire | 
| /aws/lambda/<installation-stack-name>-oauth-credentials | Never expire | 
| /aws/lambda/<installation-stack-name>-self-signed-certificate | Never expire | 
| /aws/lambda/<installation-stack-name>-update-cluster-prefix-list | Never expire | 
| /aws/lambda/<installation-stack-name>-vdc-scheduled-event-transformer | Never expire | 
| /aws/lambda/<installation-stack-name>-vdc-update-cluster-manager-client-scope | Never expire | 
| /<installation-stack-name>/cluster-manager | 3 months | 
| /<installation-stack-name>/vdc/controller | 3 months | 
| /<installation-stack-name>/vdc/dcv-broker | 3 months | 
| /<installation-stack-name>/vdc/dcv-connection-gateway | 3 months | 

If you would like to change the default retention for a log group, you can go to the [CloudWatch console](https://console.aws.amazon.com/cloudwatch) and follow the directions to [ Change log data retention in CloudWatch Logs](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/Working-with-log-groups-and-streams.html#SettingLogRetention).