unable to save metrics: duplicate pod received

[pdefreitas]

I have setup metricts-server in my EKS cluster and I have tried with Helm and also the master of this repo.
Always with the same result. It cannot get metrics.

Cluster VPC has private DNS disabled, which makes me use "--kubelet-preferred-address-types=InternalIP" as I've seen in other issues as a proposed solution. However this generates another problem:

E1203 14:41:16.126907       1 reststorage.go:144] unable to fetch pod metrics for pod yyy: no metrics known for pod
E1203 14:41:46.134386       1 reststorage.go:144] unable to fetch pod metrics for pod yyy: no metrics known for pod
E1203 14:42:14.734994       1 manager.go:118] unable to save metrics: duplicate pod yyy received
E1203 14:42:16.141882       1 reststorage.go:144] unable to fetch pod metrics for pod yyy: no metrics known for pod
E1203 14:42:46.151174       1 reststorage.go:144] unable to fetch pod metrics for pod yyy: no metrics known for pod

Oh btw, I am setting the resources in my StatefulSet.

What is this related to?

[pdefreitas]

Here is the deal, I am using HPA, and if you have just set the resources in your HPA and you don't set the limits it will behave like this. For now no warning events so I will just close this issue.

[zuoinlv]

@pdefreitas what does the "limits" mean in your comments and how to set it ?

[pdefreitas]

@zuoinlv I don't know if this is still useful for you, but for reference if you don't set in the resources of your StatefulSet both values for requests and limits (cpu/ram), it will behave like I have described in the first comment.

[llussy]

I had the same problem，how do you solve it? Thank you

log

E0111 05:05:39.670286       1 manager.go:118] unable to save metrics: duplicate pod kube-system/kube-controller-manager-xxxx received
E0111 05:06:09.661404       1 manager.go:118] unable to save metrics: duplicate pod kube-system/kubernetes-dashboard-678f88b56b-f4jnw received

kubectl top pod

 kubectl top pod
W0111 13:07:07.089813   29907 top_pod.go:263] Metrics not available for pod kube-system/calico-kube-controllers-7779fd5f4c-t97gb, age: 4727h0m30.089793497s
error: Metrics not available for pod kube-system/calico-kube-controllers-7779fd5f4c-t97gb, age: 4727h0m30.089793497s