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The Monitoring tab displays performance metrics for a Kubernetes worker node. To open node monitoring, a Kubernetes cluster with at least one pool and one worker node must already exist in the selected region.
  1. In the Gcore Customer Portal, navigate to Cloud > Managed Kubernetes and click the cluster name.
Kubernetes Clusters list with cluster name and Create Cluster button
  1. On the cluster page, open the Pools tab and click the node name.
Cluster detail page showing pool with a running worker node
  1. On the node details panel, select the Monitoring tab.
Monitoring tab on a Kubernetes worker node with CPU Utilization and RAM Utilization graphs
Two controls appear above the graphs — the left one selects the time range of the displayed data, and the right one sets the refresh interval.
Rate metrics — bytes per second and packets per second — display one-minute averages. The system collects the total volume for one minute and divides by 60.

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Metrics

The Monitoring tab shows four metrics for the selected worker node:
  1. CPU Utilization measures the load on the node processor as a percentage. At 90% load across all cores, the graph displays 90%.
  2. RAM Utilization measures the amount of RAM the worker node uses, as a percentage. A value of 100% means the RAM is fully loaded.
RAM Utilization in the portal may be higher than the value shown inside the operating system. The Monitoring tab includes cache RAM — memory the OS reserves to speed up applications but reclaims immediately when any application requires it.
  1. Network Traffic shows network traffic speed. Network BPS, ingress is incoming traffic in bytes per second, and Network BPS, egress is outgoing traffic in bytes per second.
  2. Network Packets shows network traffic in packets per second. Network PPS, ingress is incoming traffic in packets per second, and Network PPS, egress is outgoing traffic in packets per second.