I have heard before that the recommended minimum cluster size is 4 (with replication factor of 3). I am curious to know if vnodes would change that or if that statement was valid to begin with!
The use case I am working on is one where we see tremendous amount of load for just 2 days out of the week and the rest of the time the cluster is pretty much idle. It appears that vnodes will allow me to auto-scale the clusters size a little easier, but I am wondering what is the smallest I can get the cluster in physical server count and still have a good replication count. I'll panic about having 1 of 2 or 1 of 3 servers going down in an outage as a separate topic alone at night while not sleeping. Thanks! Ryan