Hi, the nodes are still communicating because they have not yet done the logical separation, this is done by changing the snitch for each node in the cluster in the cassandra.yaml file of the node and then changing the name of the DC in cassandra-rackdc.properties. It is very important to do a total cleaning of the nodes.
You could follow this links https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsSwitchSnitch.html https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsAddDCToCluster.html 2018-09-18 10:22 GMT-06:00 Ghazi Naceur <ghazi.naceur.cont...@gmail.com>: > Hello everyone, > > I am facing a problem with my 2 Cassandra Clusters. In fact, I created the > first one and it does contain 5 nodes. After that, I created the second one > as a duplicate of the first. I changed the seeds parameters and I was > assuming that the first cluster will not communicate with the second, but I > always see communication between both clusters. I didn't change, though, > the DC names and the cluster names (so they have the same DC name and the > same cluster name), and both clusters are in the same network. > I need to separate between the 2 clusters. Is there some configuration to > be applied in order to perform the isolation between clusters ? > > Thank you for your help. >
