Troubleshooting OpenShift Container Platform 4.x: Machine Scaling

Environment

• Red Hat OpenShift Container Platform
  • 4.x

Issue

• How do I debug a machine scaling issue within my OpenShift 4.x cluster?

Diagnostic Steps

Check the logs for an issue related to Machine scaling, they are in the machine-controller container of the machine-api-controllers on the openshift-machine-api project. For instance:

$ oc get pod -n openshift-machine-api
NAME                                              READY     STATUS    RESTARTS   AGE
cluster-autoscaler-operator-7f74bdf7f9-kbdbt      1/1       Running   0          3h
machine-api-controllers-5d7f7b954c-4rktq   7/7       Running   0          3h
machine-api-operator-7677d99bc-fsxmn              1/1       Running   0          3h
$ oc logs machine-api-controllers-5d7f7b954c-4rktq -c machine-controller -n openshift-machine-api

Other useful commands can be:

oc get machineset -n openshift-machine-api
oc describe machineset $clusterid-worker-eu-west-2a -n openshift-machine-api
oc get machine -n openshift-machine-api
oc describe machine $clusterid-worker-eu-west-2a-6fg9q -n openshift-machine-api

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