Based on the description I am guessing that Zendisco is one of these asynchronous replication based connsensus algorithms. Anyone have the knowledge to confirm or deny that?
iirc, it’s more of the way the metadata gets synced around the cluster and leader elections happen. I haven’t looked at the details in a while, but it’s not incredibly smart, and its not resilient to many classes of failure. Replication itself is unrelated.