In this run [1] the scaling test was able to remove a machine and the controller was able to remove an etcd member for that machine from the etcd cluster. However the member was never removed from the etcd-endpoints configmap and the test failed. Timeline: ... successfully deleted the machine "ci-op-nz207tgr-04345-rr7bv-master-0-clone" from the API cluster has reached the expected number of 3 voting members, the members are: ensuring that the openshift-etcd/etcd-endpoints cm has the expected number of 3 voting members unexpected number of voting members in the openshift-etcd/etcd-endpoints cm, expected exactly 3, got: 4 ... unexpected number of voting members in the openshift-etcd/etcd-endpoints cm, expected exactly 3, got: 4 [1] https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.11-e2e-vsphere-techpreview-serial/1533039934233907200