Re: Validation of NetworkTopologyStrategy data center name in Cassandra 4.0

Thanks for providing the links Erick, very helpful. Although it is slightly inconvenient for me I now better understand the motivation. On 10. Aug 2021, at 10:27, Erick Ramirez mailto:erick.rami...@datastax.com>> wrote: You are correct. Cassandra no longer allows invalid DC names for NetworkTo

Re: Validation of NetworkTopologyStrategy data center name in Cassandra 4.0

You are correct. Cassandra no longer allows invalid DC names for NetworkTopologyStrategy in CREATE KEYSPACE or ALTER KEYSPACE from 4.0 ( CASSANDRA-12681 ). FWIW, here is the NEWS.txt

Validation of NetworkTopologyStrategy data center name in Cassandra 4.0

Hi, in Cassandra 3.11.x I was able to create key spaces with basically arbitrary names for the data center. When I do this with Cassandra 4.0 I get a "ConfigurationException: Unrecognized strategy option {} passed to NetworkTopologyStrategy for keyspace ”. This breaks some unit tests in our CI