@daher did you check kubelet service if it is running or having issue starting, . . .

Subrata Biswas:
@daher did you check kubelet service if it is running or having issue starting, any backpressures on the node , kubectl describe nodes "node name’ will give you more idea and then kubectl get events and kubectl get events -n kube-system will dig more, has there been any recent changes on that node , any firewall-cmd rules stopping kubelet to reach api-server ?

daher:
may i know what is backpressure

Subrata Biswas:
sure , if you do kubectl describe no “nodename” then you will the resources items as per this screenshot , pid,cpu,memory,network for kubelet health