While connecting to Cassandra client using java driver for Cannsandra by DataStax, it is throwing following error..
Exception in thread \"main\" com.datastax
I was having the same issue testing a new cluster with one node.
After removing this from the Cluster builder I was able to connect:
.withLoadBalancingPolicy(new DCAwareRoundRobinPolicy("US_EAST"))
It was able to connect.