Rancher Docs: Monitoring and Alerting
rancher.com › docs › rancherThere is a known issue that K3s clusters require more default memory. If you are enabling monitoring on a K3s cluster, we recommend setting prometheus.prometheusSpec.resources.memory.limit to 2500 Mi and prometheus.prometheusSpec.resources.memory.request to 1750 Mi. For tips on debugging high memory usage, see this page.