I’ve just started looking at Event Store, and it looks great. The API works exactly how one would want, so complicated abstractions don’t have to be built on top.
It doesn’t appear that Event Store has ever had a Jepsen-type test. Is that something that could happen sometime? It’s understandable if no one has made the effort yet; these tests seem fairly involved. However, they have helped a number of other DBs to improve their responses to partitions. It’s possible, too, that some aspect of Event Store would make this sort of test unsuitable?