Cannot install Istio in Kubernetes cluster

0
votes

I have created a Kubernetes cluster in my PC (master + 2 nodes). Version is 1.13.2. Afterwards, I installed Istio using the guidelines in https://istio.io/docs/setup/kubernetes/download-release and https://istio.io/docs/setup/kubernetes/quick-start (version is 1.0.5).

After checking the status of the pods, I see that the istio-pilot pod is always in status Pending, while some other pods fail as well. After several iterations, the result is always the same.

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Initially the Master node has 2 cores/4 GB RAM and I increased it to 5 cores / 6 GB RAM, but the result is still the same. There are also 2 Worker nodes with 2 cores / 2 GB RAM each.

Any ideas what the problem could be?

1
kubernetesistio
Are you sure that the cluster is fully operational? Are all the system pods running correctly in kube-system namespace? – Paul Annetts
Can you please share the full output from 'kubectl get pod/<servicegraph-...> -n <your-istio-namespace> -o yaml'. What installation option exactly you have picked up from Istio`s website ? – Nepomucen
it's old issue, try kubectl logs <pilot-pod-name> -n istio-system, seen this behaviour due to insufficient memory. Similar question but for minikube: stackoverflow.com/questions/52519668/… – Sumit Murari
Look at kubectl describe <failing pod>. This should include information on why the pods are failing. Since the failures are cluster-wide, it is likely insufficient resources, like @murarisumit suggests. – Isaiah Snell-Feikema

1 Answers

0
votes

most likely the pods that are failing could be stateful pods. can you check those manifests and update the volume to emptyDir