Check the JMX port listed in /etc/cassandra/cassandra-env.sh
If it's not default you can pass it to nodetool using the --jmx-port option.
Freelance Cassandra Developer
I migrated my test environment from 1.2.0 to 1.2.1 (DataStax Community) and nodetool can not communicate to 7199, even if it is listening. in one node I get
Failed to connect to 'cassandra4:7199': Connection refused
in another node I get timeout.
Did I do anything wrong, when upgrading?
Thanks In advance
"Life is what happens while you are making other plans." ~ John Lennon