Perform one of the following tasks, depending on the endpoint_snitch setting in your old cassandra.yaml file:
endpoint_snitch URL Upgrade Task org.apache.cassandra.locator.SimpleSnitch Leave the DseDelegateSnitch in the cassandra.yaml and the default delegated_snitch in the new dse.yaml unchanged. org.apache.cassandra.locator.PropertyFileSnitch Copy/paste the cassandra-topology.properties from the old installation to: <install_location>/resources/cassandra/conf for binary installs or to /etc/dse/cassandra for packaged installs. This action overwrites the new properties file. Set the delegated_snitch setting in the new dse.yaml file to: org.apache.cassandra.locator.PropertyFileSnitch. Any other snitch URL Change the default delegated_snitch in the new dse.yaml file to your current snitch setting.
The default delegated_snitch setting is specified in the new dse.yaml file:
The dse.yaml is located in <install_location>/resources/dse/conf (binary installs) or in /etc/dse (packaged installs).