kubelet target is down in Prometheus even if node object is not available in OpenShift.

Solution Verified - Updated -

Issue

  • Getting alert 11.7647% of kubelet targets are down in Alertmanager.
alertname = TargetDown
cluster = abc.ocp-cluster.com
job = kubelet
prometheus = openshift-monitoring/k8s
severity = warning
Annotations
description = 11.76470588235294% of kubelet targets are down.
summary = Targets are down

Environment

  • OpenShift Container Platform 3.10
  • OpenShift Container Platform 3.11

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