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Jess Egler
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Breaks up kubectl commands for clarity
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‎articles/operator-nexus/troubleshoot-not-ready-kubernetes-cluster-node.md

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# Troubleshoot a KubernetesCluster with a node in NotReady state
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Follow this troubleshooting guide if you see a kubernetesCluster with a node in NotReady.
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Follow this troubleshooting guide if you see a kubernetesCluster with a node in **NotReady**.
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## Prerequisites
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## Procedure
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Delete the node by following the example below. This will allow the Cluster to attempt to reschedule and restart the node.
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Delete the node by following the instructions below. This will allow the Cluster to attempt to reschedule and restart the node.
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~~~bash
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# get list of nodes, wide
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1. Use kubectl to list the nodes using the wide flag. Observe the node in **NotReady** status.
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~~~bash
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$ kubectl get nodes -owide
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-7qt2b Ready <none> 6d3h v1.27.3 10.4.74.30 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-dqmzw Ready <none> 6d3h v1.27.3 10.4.74.31 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-lkhhq NotReady <none> 6d3h v1.27.3 10.4.74.29 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-6q7ns Ready control-plane 6d3h v1.27.3 10.4.74.14 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-8qqvz Ready control-plane 6d3h v1.27.3 10.4.74.28 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-g42mh Ready control-plane 6d3h v1.27.3 10.4.74.32 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-g42mh Ready control-plane 6d3h v1.27.3 10.4.74.32 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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~~~
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# see NotReady node. issue kubectl command to delete it:
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1. Issue the kubectl command to delete the node.
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~~~bash
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$ kubectl delete node mytest-naks1-3b466a17-agentpool1-md-6bg5h-lkhhq
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node "mytest-naks1-3b466a17-agentpool1-md-6bg5h-lkhhq" deleted
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~~~
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1. List the nodes again and see that the node is gone.
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# node list is now shows that node is gone:
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~~~bash
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$ kubectl get nodes -owide
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-7qt2b Ready <none> 6d3h v1.27.3 10.4.74.30 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-dqmzw Ready <none> 6d3h v1.27.3 10.4.74.31 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-6q7ns Ready control-plane 6d3h v1.27.3 10.4.74.14 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-8qqvz Ready control-plane 6d3h v1.27.3 10.4.74.28 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-g42mh Ready control-plane 6d3h v1.27.3 10.4.74.32 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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~~~
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1. Wait 5-15 minutes for the node to be replaced. See that its returned with a new name. It will show **NotReady** as it comes up.
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# wait 5-15 minutes while its replaced. see it returned with a new name:
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~~~bash
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$ kubectl get nodes -owide
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-7qt2b Ready <none> 6d3h v1.27.3 10.4.74.30 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-6q7ns Ready control-plane 6d3h v1.27.3 10.4.74.14 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-8qqvz Ready control-plane 6d3h v1.27.3 10.4.74.28 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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mytest-naks1-3b466a17-control-plane-g42mh Ready control-plane 6d3h v1.27.3 10.4.74.32 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26
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~~~
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1. Wait a bit longer and the **NotReady** node becomes **Ready**.
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# wait a bit longer, while the new NotReady node becomes Ready:
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~~~bash
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$ kubectl get nodes -owide
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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mytest-naks1-3b466a17-agentpool1-md-6bg5h-7qt2b Ready <none> 6d3h v1.27.3 10.4.74.30 <none> CBL-Mariner/Linux 5.15.153.1-2.cm2 containerd://1.6.26

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