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 {<arbitrary-dc-name>}
passed to NetworkTopologyStrategy for keyspace <keyspacename>”.
This breaks some unit tests in our CI where we test CREATE KEYSPACE statements
for different clusters on a single node test instance.
The only documentation I found is an issue from ScyllaDB:
https://github.com/scylladb/scylla/issues/7595. It seems Cassandra 4.0 added
some validation on the data center name. I verified that I can get rid of the
error by configuring a DC in the cassandra-rackdc.properties and enabling
endpoint_snitch: GossipingPropertyFileSnitch in cassandra.yaml. This, of
course, is not very practical for unit tests because we would need to change
the configuration of Cassandra (and restart) before any of the unit tests. No
problem for production of course, there the cluster is configured accordingly.
Is there a way to disable the validations for testing purposes? Or to change
them dynamically?
Any help is appreciated!
Jens
Geschäftsführer: Oliver Koch, Bianca Swanston
Amtsgericht Kempten/Allgäu, Registernummer: 10655, Steuernummer 127/137/50792,
USt.-IdNr. DE272208908
