First thoughts in my head....<p>1) Ah, cool, creator of Raft algo, so some of the 'obvious' mistakes in an implementation should've been resolved by now (though if ppl weren't trying to use it in production.... who knows).<p>2) Great, C++, it should be efficient and fast with consistent RAM usage (Go's GC is a bit.... eh... still).<p>3) Oh, you need a C++ client library. :(<p>I would love to say that API's don't matter, but they do. So, so, so much. If they didn't, etcd would never have had a chance against Zookeeper. The Zookeeper folks are looking at adding RESTful API's to allow functionality ala-etcd, because its obvious a convenient API is a huge win. Any distributed system solution attempting to gain steam should consider this from the beginning now, as the bar has been set.