Failed to open native connection: (Datastax) : dse spark-submit

[kmohsin]

I am using Shellcommandactivity to first copy the script from s3 and execute the same.
The resource is m3.xlarge , paravirtualization,
Failed to open native connection: (Datastax) : dse spark-submit ....
The error is :
Exception in thread "main" java.io.IOException: Failed to open native connection to Cassandra at {xxx.xxx.xxx.xxx}:9042
The connections / port connectivity as checked are all good.
This is a non-EMR standalone datastax cluster and the above shell activity is executed on a driver machine.