I have a 3 nodes Cassandra cluster with 2 keyspaces. One of them has replication factor 1 and the other, replication factor 2. I want to reduce the cluster, using nodetool decommission, to remove 2 nodes and leave only one (single node cluster).
So, what must I do with the replication factor? I think both keyspaces must have replication factor 1, but when must I modify it? Before decommission?
Thanks a lot!