This article describes a solution for exporting Cloud Monitoring metrics for long-term analysis. Cloud Monitoring provides a monitoring solution for Google Cloud and Amazon Web Services (AWS). Cloud Monitoring maintains metrics for six weeks because the value in monitoring metrics is often time-bound. Therefore, the value of historical metrics decreases over time. After the six-week window, aggregated metrics might still hold value for long-term analysis of trends that might not be apparent with short-term analysis.
https://cloud.google.com/architecture/monitoring-metric-export
