Kube Node Events Test

Kubernetes nodes run various applications and store data and can run on a number of platforms, including public clouds, private clouds, bare metal servers, and laptop. Regardless of the infrastructures in which the nodes are running, Kubernetes systems create events for all operations performed on the target worker node eg., pod creation, container creation etc. - and also abnormalities such as image pulling failures, scheduling failures etc. Administrators should keep an eye out for Kubernetes events, and capture these events whenever they are created so as to be able to quickly detect and troubleshoot issues that impact node performance.

This test intercepts the Kubernetes events as and when they are created by the Kubernetes system, and brings the count of events created at any point in time. The detailed diagnosis provided by this test helps administrators to identify the event type and quickly determine why the event was created. This can greatly help in troubleshooting problem events and tracking the operations performed on the node.

Target of the test : A Kubernetes Worker Node

Agent deploying the test : An internal agent

Outputs of the test : One set of results for the target Kubernetes Worker node being monitored

Configurable parameters for the test

Parameter	Description
Test Period	How often should the test be executed.
Host	The IP address of the host for which this test is to be configured.
Port	Specify the port at which the specified Host listens. By default, this is 6443.
Timeout	Specify the duration (in seconds) beyond which the test will timeout in the Timeout text box. The default value is 10 seconds.
Event size	Size of event can vary based on content and structure. Specify the minimum size over which will be monitored.
Detailed Diagnosis	To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option. The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled: The eG manager license should allow the detailed diagnosis capability Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Number of events	Indicates the total number of events created on the target worker node.	Number	Use the detailed diagnosis of this measure to find out the following:

The detailed diagnosis of the Node type measure reveals the IP address and name of the node, the name of the cluster to which the node belongs to, the version of kubelet and container runtime available in the node.

Figure 1 : The detailed diagnosis of the Node type measure