Nodes page in the Kubernetes view
The Nodes page is designed to provide capacity management insights for the Kubernetes nodes. Each page contains additional tabs, each of which presents capacity and efficiency KPIs related to the resources relevant for the analyzed entity. By default, some columns are hidden. You can show or hide columns using the action menu
that is located next to the table title.
Capacity
The Capacity tab is designed to provide a summary of the key KPIs for managing capacity of Kubernetes nodes.
Column name | Meaning |
|---|---|
Node | Name of the node. Clicking on one of the nodes in this column takes you to the Node details page in the Kubernetes view. |
Cluster | Name of the cluster that the node is running on. |
| Days To Saturation | Estimated number of days before one of the resources (CPU or Memory) of the node breaches the configured warning threshold. If the resource usage has already exceeded thresholds, it displays Saturated. |
| CPU # | Number of CPU cores currently configured for the node. |
| CPU Used [cores] | Total CPU used by the node expressed in cores. |
| CPU Request [cores] | Amount of CPU that the system will guarantee for the node. |
| CPU Limit [cores] | Maximum CPU cores that the node will be allowed to use. |
CPU Used vs Capacity [%] | Percentage of CPUs actually used with respect to CPU capacity (number of CPUs) |
CPU Request vs Capacity [%] | Percentage of CPUs requested with respect to CPU capacity (number of CPUs) |
| CPU Used vs Limit [%] | Percentage of CPU used with respect to the CPU limit. |
| CPU Limit vs Capacity [%] | Percentage of CPU limit with respect to CPU capacity (number of CPUs). |
| Memory [GB] | Total memory configured for the node. |
| Mem Used [GB] | Total memory used by the node. |
| Mem Real Used [GB] | Real memory used by the node. |
| Mem Limit [GB] | Maximum amount of memory that the node is allowed to use. |
| Mem Request [GB] | Amount of memory that the system will guarantee for the node. |
Mem Used vs Capacity [%] | Percentage of memory actually used with respect to memory capacity (total memory) |
| Mem Real Used vs Capacity [%] | Percentage of real memory actually used with respect to memory capacity (total memory) |
Mem Request vs Capacity [%] | Percentage of memory requested with respect to memory capacity (total memory) |
Mem Real Used vs Limit [%] | Percentage of real memory used with respect to memory limit. |
Mem Limit vs Capacity [%] | Percentage of memory limit with respect to memory capacity (total memory). |
| File System [GB] | Total file system configured for the node. |
File System Used vs Capacity [%] | Percentage of file system actually used with respect to file system capacity (total file system). |
Pod # vs Pod Max [%] | Percentage of pod already created |
Bottleneck | First resource to saturate |
CPU
The CPU tab presents the key metrics related to the CPU.
Column name | Meaning |
|---|---|
Node | Name of the node. Clicking on one of the nodes in this column takes you to the Node details page in the Kubernetes view. |
Cluster | Name of the cluster that this node is running on. |
Days To Saturation | Estimated number of days when the CPU is predicted to breach the configured warning threshold. If the resource usage has already exceeded thresholds, it displays Saturated. |
CPU # | Number of CPU cores currently configured for the node. |
| CPU Used [cores] | Total CPU used by the node expressed in cores. |
| CPU Request [cores] | Amount of CPU that the system will guarantee for the node. |
| CPU Limit [cores] | Maximum CPU cores that the node will be allowed to use. |
CPU Used vs Request [%] | Percentage of CPU used with respect to the CPU request. |
CPU Used vs Capacity [%] | Percentage of CPUs actually used with respect to CPU capacity (number of CPUs). |
| CPU Request vs Capacity [%] | Percentage of CPUs requested with respect to CPU capacity (number of CPUs). |
| CPU Used vs Limit [%] | Percentage of CPU used with respect to the CPU limit. |
| CPU Limit vs Capacity [%] | Percentage of CPU limit with respect to CPU capacity (number of CPUs). |
CPU Overcommitment [%] | Percentage of CPU limit with respect to the CPU capacity (number of CPUs). |
Bottleneck | The resource that is predicted to saturate first. |
Memory
The Memory tabs presents the most important metrics related to the memory.
Column name | Meaning |
|---|---|
Node | Name of the node. Clicking on one of the nodes in this column takes you to the Node details page in the Kubernetes view. |
Cluster | Name of the cluster that this node is running on. |
Days To Saturation | Estimated number of days when the CPU is predicted to breach the configured warning threshold. If the resource usage has already exceeded thresholds, it displays Saturated. |
| Memory [GB] | Total memory configured for the node. |
| Mem Used [GB] | Total memory used by the node. |
| Mem Limit [GB] | Maximum amount of memory that the node is allowed to use. |
| Mem Request [GB] | Amount of memory that the system will guarantee for the node. |
Mem Used vs Request [%] | Percentage of memory used with respect to memory request. |
Mem Used vs Capacity [%] | Percentage of memory used with respect to memory capacity (total memory). |
Mem Request vs Capacity [%] | Percentage of memory request with respect to memory capacity (total memory). |
Mem Real Used vs Limit [%] | Percentage of real memory used with respect to memory limit. |
Mem Limit vs Capacity [%] | Percentage of memory limit with respect to memory capacity (total memory). |
Mem Overcommitment [%] | Percentage of memory limit with respect to memory capacity (total memory). |
Bottleneck | The resource that is predicted to saturate first. |
Detailed information about a specific node
After you click on the node in the Node column, the Node details page is displayed. You can use the sorting and filtering options on the page to find a specific node.
| Section or Panel | Description |
|---|---|
| General details section | General details, such as node name and type are displayed. The type is Kubernetes - Node. |
| Related Information panel | Clicking the links in the Related Information panel displays the other information such as image analysis. |
| Summary tab | A quick graphical summary of the CPU, memory, and network data, and number of pods of the node. Core metrics for the selected entity are displayed as analysis charts, depending on available data. |
| Configuration Details tab | The configuration matrix for the selected node. |
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