*** Bug 1856272 has been marked as a duplicate of this bug. ***
Had a chance to dig into this a bit more, and we decided we can pretty easily mitigate the event spam with a small operator patch. The WIP is here: https://github.com/openshift/cluster-etcd-operator/pull/421
Moving this to 4.4.z as there's nothing to do in 4.5 or 4.6 (the IP migration code is gone in those versions).
*** Bug 1899344 has been marked as a duplicate of this bug. ***
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 (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), 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/RHSA-2020:5633