Ideally, we would want to have a replication factor of 4, and a minimum write consistency of 2 (which looking at the default in cassandra.yaml is to memory first with asynch to disk...perfect so far!!!)
Now, obviously, I can get the partitioner setup to make sure I get 2 replicas in each data center. The next thing I would want to guarantee however is that if a write came into datacenter 1, it would write to the two nodes in datacenter 1 and asynchronously replicate to datacenter 2. Is this possible? Does cassandra already handle that or is there something I could do to get cassandra to do that? In this mode, I believe I can have both datacenters be live as well as be backup for the other not wasting resources. thanks, Dean
