A few nodes or pods are not discovered for monitoring. Why?
Check for the below cases if applicable.
Case 1: License inadequacy
Case 2: Taint configurations
If a few nodes are not discovered for monitoring, it might be because the node has a taint configuration. If so, the Site24x7 agent DaemonSet will not be able to spawn the pods on that node.
To add the node for monitoring, you need to configure the toleration to enable the Site24x7 agent to spawn on that node.
Check if Taints are applied using the below command:
kubectl describe node <node-name>
An example for the taints configured to a sample node is shown below:
kubectl describe node <node-name>
An example for the taints configured to a sample node is shown below:
Configuring tolerations
1. To configure tolerations for the Site24x7 agent DaemonSet for the above taints, open the downloaded site24x7-agent.yaml file and add the tolerations under the spec section as shown below:
2. After configuring the above tolerations in the Site24x7 agent YAML file, execute the below command:
kubectl apply -f site24x7-agent.yaml
You have successfully configured the tolerations for the taints.
Customers also searched this KB for the below problem statements:
There is a mismatch in the number of nodes in the Cluster dashboard and the Monitors List View page.
I am not able to see all the pod logs.
A few pods are missing for monitoring.
Some nodes are not added for monitoring.
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