AKA Cluster Error Voting& What is Cluster Error Voting (CEV)? “Cluster Error Voting is a new feature implemented by Alexey Yurchenko, and it is a protocol for nodes to decide how the cluster will react to problems in replication. When one or several nodes have an issue applying an incoming transaction(s) (e.g., suspected inconsistency), this [&]

https://www.percona.com/blog/2021/05/04/inconsistent-voting-in-percona-xtradb-cluster/