Once we've established the BDR cluster seed node, we can begin by adding one or more additional nodes to establish multi-master functionality. This is where things start to get exciting!
This recipe is also very simple and will focus on adding any new node to an established BDR cluster. We should be able to run through the recipe as many times as we want, using as many nodes as we desire, to create a large cluster.
Don't get too carried away, however, as BDR only supports up to 1,024 nodes!