Kubernetes Insufficient CPU s and MatchNodeSelector in Openshift

Question

I am using openshift v3 which running my project. One of the apps which worked fine suddenly stopped working after a GitHub commit downstream in the code. The issue is with creating a pod:

No nodes are available that match all of the following predicates::
 Insufficient cpu (173), MatchNodeSelector (5). 

I tried scaling down other pods to check if there's some other setting interfering or other but it's still the same. Is it Openshift that has run out of CPU's or have I configured some setting that it is requesting 172 CPU's and 5 more nodes.

Answer 1

That error message does not mean that the pod is requesting 172 CPU's from you. What it actually means, is that it failed to schedule on 173 machines where there wasn't enough CPU compute left while it wasn't able to schedule on the other 5 because the nodes didn't have the labels that were specified in the pod spec.