Openshift 4.9-4.10 Etcd 3.5.0-3.5.2 data inconsistency

Issue

• The issue occurs when the etcd process is shutdown in an uncontrolled manner and is operating under high load
• The kill -9 command and Out Of Memory (OOM) kills are canonical examples, as well as OpenShift Container Platform Control Plane Nodes running out of available memory or disk space.
• After updating to OCP 4.9.28 or 4.10.9 (or later) one etcd pod is failing to start and the etcd operator is in a degraded state.
• etcd pod is failing to start and reporting found data inconsistency with peers.