The kube-controller-manager container cluster-policy-controller will show unusual error logs ,such as "
I0214 10:49:34.698154       1 interface.go:71] Couldn't find informer for template.openshift.io/v1, Resource=templateinstances
I0214 10:49:34.698159       1 resource_quota_monitor.go:185] QuotaMonitor unable to use a shared informer for resource "template.openshift.io/v1, Resource=templateinstances": no informer found for template.openshift.io/v1, Resource=templateinstances
"

when the cluster-policy-controller restart ,u will see these logs

1.oc logs kube-controller-manager-master0 -n openshift-kube-controller-manager -c cluster-policy-controller