*** Bug 1802729 has been marked as a duplicate of this bug. ***
Per openshift cluster-openshift-apiserver-operator pull 365 code change, if returned error message is NotFound type, the method MasterNodeNames won't return error message, just like this message ‘daemonset.apps "apiserver" not found ’, this can be found in not fixed openshift installation log file https://storage.googleapis.com/origin-ci-test/logs/release-openshift-ocp-installer-e2e-aws-4.3/800/artifacts/e2e-aws/pods/openshift-apiserver-operator_openshift-apiserver-operator-6b869b8c5b-l7tnx_openshift-apiserver-operator.log We can find the following error messages, E0208 06:36:34.821714 1 workload_controller.go:185] key failed with : clusteroperator/kube-apiserver is not Available I0208 06:36:34.821772 1 event.go:255] Event(v1.ObjectReference{Kind:"Deployment", Namespace:"openshift-apiserver-operator", Name:"openshift-apiserver-operator", UID:"096f1dec-fd6f-4a18-9af3-d868674a7c05", APIVersion:"apps/v1", ResourceVersion:"", FieldPath:""}): type: 'Warning' reason: 'PrereqNotReady' clusteroperator/kube-apiserver is not Available E0208 06:36:34.887822 1 condition_controller.go:222] key failed with: daemonset.apps "apiserver" not found E0208 06:36:34.888815 1 state_controller.go:191] key failed with: daemonset.apps "apiserver" not found E0208 06:36:34.888869 1 prune_controller.go:224] key failed with: daemonset.apps "apiserver" not found E0208 06:36:34.888918 1 migration_controller.go:347] key failed with: daemonset.apps "apiserver" not found Do a quick searching with https://search.apps.build01.ci.devcluster.openshift.com/?search=*daemonset.apps+%22apiserver%22+not+found*&maxAge=336h&context=2&type=bug%2Bjunit&name=&maxMatches=5&maxBytes=20971520&groupBy=job&wrap=on there is no related errors for 4.3 over the past 14 days as well. So the fix works as expected, move the bug verify.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:2256