Unable to resize cluster nodes

[JustinYeoh]

Hi there everyone, 

I'm trying to resize my node group's node size but to no success.

I'm not certain what's the cause of it but I'm suspecting if it is because our cluster is too old (1.11.8-gke.6).

Resize the node pool n8 in Kubernetes Engine cluster SomeCluster

All cluster resources were brought up, but: only 5 nodes out of 7 have registered; cluster may be unhealthy

My main question is that are nodes that run old version of K8s not resizable?

[glen_yu]

Did you resize from 5 to 7 and the 2 new nodes are the ones not coming up?   Are there any errors in the GKE dashboard or in Cloud Logging?

In any case I do think that it's not coming up because of the deprecated k8s version.  When a version makes it into the Regular channel, Google provides 14 months of support before it reaches end of life.  1.11.x was early-mid 2019 so you're' way past the 14 month mark.

I would still consult your logs/error messages to verify why the nodes aren't coming up, but I'm quite certain that this was it...

[garisingh · Accepted solution]

You cannot modify or create node pools on clusters running unsupported versions.

[JustinYeoh]

Yeap, learn't that the hard way.

Appreciate the response people

[SrinathOR]

Hi 

I don't think it is related to supported version.. if you still have the cluster component images then you should be able to spin up new nodes or nodepools. 

Can you ssh to the troublesome node and give me journal logs?