What RF are you using? How many data centers? What rack configuration are you currently using/ Are you in fact using a rack-aware network topology partitioner?
Specifically, what are you attempting to accomplish - why change the rack at all? Not that changing the rack is necessarily bad, just to clarify your objective. See: http://docs.datastax.com/en/cassandra/2.0/cassandra/architecture/architectureDataDistributeReplication_c.html You may just have to bootstrap the new node with the proper rack and then run repair on the nodes which formerly held replicas of the old node. Or, you may have to run a full repair for all nodes of the cluster: http://docs.datastax.com/en/cassandra/2.0/cassandra/operations/opsMoveNodeRack.html -- Jack Krupansky On Thu, Nov 26, 2015 at 4:02 AM, Badrjan <badr...@tuta.io> wrote: > So I have a 8 node cluster and I would like to change the rack of one > node. How should I do that? > > B. >