replicator.splitNodesWithRack(replicaList, rackMap, first, second);
replicator.splitNodesWithRack( replicaList, rackMap, first, second); assertEquals(3, first.size());
replicator.splitNodesWithRack(replicaList, rackMap, first, second);
replicator.splitNodesWithRack( replicaList, rackMap, first, second); assertEquals(3, first.size());