Hi, we currently plan to add a second data center to our Cassandra-Cluster. I have read about this procedure in the documentation (eg. https://www.datastax.com/documentation/cassandra/2.1/cassandra/operations/ops_add_dc_to_cluster_t.html), but at least one question remains:
Do I have to provide appropriate values for num_tokens dependent on the number of nodes per data center, or is this handled somehow by the NetworkTopologyStrategy? Example: We currently have 12 nodes each covering 256 tokens. Our second datacenter will have three nodes only. Do I have to set num_tokens to 1024 (12*256/3) for the nodes in that DC? Thank you very much for your valuable input! Kind regards Björn Hachmann