Metrics-server: Error from server (ServiceUnavailable): the server is currently unable to handle the request (get nodes.metrics.k8s.io)

[kyriefly]

创建成功 但是一直false

[shivaniarbat]

创建成功 但是一直false

Facing the similar issue !!

[shivaniarbat]

add below command by editing the metrics server deployment from components.yaml file.

command:
- /metrics-server
- --kubelet-insecure-tls
- --kubelet-preferred-address-types=InternalIP

     k8s-app: metrics-server
      name: metrics-server
    spec:
      containers:
      - args:
        - --cert-dir=/tmp
        - --secure-port=4443
        command:
        - /metrics-server
        - --kubelet-insecure-tls
        - --kubelet-preferred-address-types=InternalIP
        image: k8s.gcr.io/metrics-server/metrics-server:v0.3.7
        imagePullPolicy: IfNotPresent
        name: metrics-server
        ports:
        - containerPort: 4443
          name: main-port
          protocol: TCP



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sudo systemctl daemon-reload



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sudo systemctl restart kubelet



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sudo systemctl enable kubelet 



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sudo systemctl restart kubelet



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sudo systemctl enable kubelet 



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kubectl top node



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shivani@master:~$ kubectl top node
NAME     CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
master   161m         2%     1014Mi          3%        
node1    31m          0%     489Mi           1%        
node2    33m          0%     262Mi           0% 

Note 💯 :
If you get following errors

Error from server (ServiceUnavailable): the server is currently unable to handle the request (get nodes.metrics.k8s.io)

TO-DO: restart and enable kubelet on master/worker

OR

error: metrics not available yet

TO-DO: restart and enable kubelet on all worker nodes

This is my setup instructions : https://github.com/shivaniarbat/metrics-server-setup-kubernetes

[serathius]

To address original post by @kyriefly. There is a message that points to problem with manifests.

endpoints for service/metrics-server in "kube-system" has no address with port name ""

Please reinstall metrics server using official manifests:

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

@shivaniarbat Same message in kubectl doesn't mean that problem has same root cause. Please create separate issue.