> What I don't like about NTS is I would have to have more replicas than I > need. {DC1=2, DC2=2}, RF=4 would be the minimum. If I felt that 2 local > replicas was insufficient, I'd have to move up to RF=6 which seems like a > waste... I'm predicting data in the TB range so I'm trying to keep replicas > to a minimum. > > My goal is to have 2-3 replicas in a local data center and 1 replica in > another dc. I think that would be enough barring a major catastrophe. But, > I'm not sure this is possible. I define "local" as in the same data center > as the client doing the insert/update.
Yes, not being able to configure the replication factor differently for each data center is a bit annoying. Im assuming you basically want DC1 to have a replication factor of {DC1:2, DC2:1} and DC2 to have {DC1:1,DC2:2}. I would very much like that feature as well, but I dont know the feasibility of it. -Eric