<p>Two of my cluster nodes gets <code>Kubelet stopped posting node status</code> in <code>kubectl describe node</code> sometimes. In logs of that nodes i see this:</p>

<pre><code>Dec 11 12:01:03 alma-kube1 kubelet[946]: E1211 06:01:03.166998     946 controller.go:115] failed to ensure node lease exists, will retry in 6.4s, error: Get https://192.168.151.52:6443/apis/coordination.k8s.io/v1beta1/namespaces/kube-node-lease/leases/alma-kube1?timeout=10s: read tcp 192.168.170.7:46824-&gt;192.168.151.52:6443: use of closed network connection
Dec 11 12:01:03 alma-kube1 kubelet[946]: W1211 06:01:03.167045     946 reflector.go:289] object-"kube-public"/"myregistrykey": watch of *v1.Secret ended with: very short watch: object-"kube-public"/"myregistrykey": Unexpected watch close - watch lasted less than a second and no items received
Dec 11 12:01:03 alma-kube1 kubelet[946]: W1211 06:01:03.167356     946 reflector.go:289] object-"kube-system"/"kube-router-token-bfzkn": watch of *v1.Secret ended with: very short watch: object-"kube-system"/"kube-router-token-bfzkn": Unexpected watch close - watch lasted less than a second and no items received
Dec 11 12:01:03 alma-kube1 kubelet[946]: W1211 06:01:03.167418     946 reflector.go:289] object-"kube-public"/"default-token-kcnfl": watch of *v1.Secret ended with: very short watch: object-"kube-public"/"default-token-kcnfl": Unexpected watch close - watch lasted less than a second and no items received
Dec 11 12:01:13 alma-kube1 kubelet[946]: E1211 06:01:13.329262     946 kubelet_node_status.go:385] Error updating node status, will retry: failed to patch status "{\"status\":{\"$setElementOrder/conditions\":[{\"type\":\"MemoryPressure\"},{\"type\":\"DiskPressure\"},{\"type\":\"PIDPressure\"},{\"type\":\"Ready\"}],\"conditions\":[{\"lastHeartbeatTime\":\"2019-12-11T06:01:03Z\",\"type\":\"MemoryPressure\"},{\"lastHeartbeatTime\":\"2019-12-11T06:01:03Z\",\"type\":\"DiskPressure\"},{\"lastHeartbeatTime\":\"2019-12-11T06:01:03Z\",\"type\":\"PIDPressure\"},{\"lastHeartbeatTime\":\"2019-12-11T06:01:03Z\",\"type\":\"Ready\"}]}}" for node "alma-kube1": Patch https://192.168.151.52:6443/api/v1/nodes/alma-kube1/status?timeout=10s: net/http: request canceled (Client.Timeout exceeded while awaiting headers)
</code></pre>

Nessero Karuzo
<p>TL;DR</p>
<pre><code>ssh &lt;failing node&gt;
sudo systemctl restart kubelet
</code></pre>
<p>I should have asked myself the magical words of &quot;Have you tried turning it on and off?&quot; I don't know what was causing my <code>kubelet</code> to fail, but I just <code>ssh</code> into the VM and restarted the <code>kubelet</code> service, and everything started working again.</p>
