Design considerations - Amazon CloudWatch Monitoring Framework

Design considerations

Regional deployments

The solution monitors instances in the deployed Region. You should deploy the solution in the Region where you want to monitor your workload instances.

Limits

AWS Systems Manager Parameter Store: As of April 2021, Amazon CloudWatch Monitoring Framework uses AWS Systems Manager Parameter Store with Advanced tier parameters to store instance ids. The parameters have a maximum size limit of 8KB which amounts to approximately 400 instance IDs.

Amazon CloudWatch Dashboards: As of April 2021, Amazon CloudWatch Dashboard widgets have a maximum limit of 500 metrics on a single widget.

Due to limitations, we recommend monitoring less than 400 instances on a single dashboard. To monitor more than 400 instances on a single dashboard, you can deploy the apache.template multiple times in any Region, with different dashboard names and tag schema parameter values.