Question
How to run metrics-server in managed k8s?
- Posted on November 3, 2020
- DigitalOcean Managed KubernetesKubernetesDigitalOcean 1-Click Apps Marketplace
Asked by johnwook
I spent about 3 days with this issue :(
- I tried to install metrcis-server(https://github.com/kubernetes-sigs/metrics-server) on my own cluster. Of course I tried to turn on the option of prefer-internalIP option, which mentioned in the article(https://www.digitalocean.com/community/tutorials/how-to-autoscale-your-workloads-on-digitalocean-kubernetes#step-3-—-installing-metrics-server)
- (Because 1 failed) I tried to install metrics-server through marketplace one(https://cloud.digitalocean.com/marketplace/5d83d4f9cc248c518b58a38c?i=654b99)
- Now I’m writing this…
No matter what I try to install metrics-server on my cluster, I can’t see CPU/memory usage of my pods. CPU/memory usage of my nodes is fine, but pods.
metric-server log says follwing (for every deployed pods)
1 reststorage.go:160] unable to fetch pod metrics for pod, ...: no metrics known for pod
My cluster runs
- 1.19.3-do.1 (most recent one)
- metrics-server 0.3.7(docker.io/bitnami/metrics-server:0.3.7-debian-10-r89)
kubectl top nodes shows
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
pool-mypoolinfoblahb 130m 6% 1323Mi 42%
pool-mypoolinfoblahb 79m 3% 806Mi 25%
kubectl top pods shows
W1103 16:56:02.901596 25473 top_pod.go:265] Metrics not available for pod default/my-pod-info-blahblah, age: 8m1.901588s
error: Metrics not available for pod default/my-pod-info-blahblah, age: 8m1.901588s
Somebody please help me
Submit an answer
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
to whom it may concern, DO team would release new DO version to resolve the issue (yay!)
link: https://github.com/digitalocean/DOKS/issues/2#issuecomment-721544306
I ran into a similar issue on DOKS 1.20.2. I was deploying using the bitnami metrics server helm chart. I had to set the command arg
kubelet-preferred-address-types=InternalIPandapiService.create=truebecause the api-service isn’t created already by DO.For reference: https://github.com/bitnami/charts/tree/master/bitnami/metrics-server#parameters
there are more people suffers from … https://github.com/digitalocean/DOKS/issues/2