TwoClusterExample.scala

import com.datastax.spark.connector._
import com.datastax.spark.connector.cql._

import org.apache.spark.SparkContext


def twoClusterExample ( sc: SparkContext) = {
  val connectorToClusterOne = CassandraConnector(sc.getConf.set("spark.cassandra.connection.host", "127.0.0.1"))
  val connectorToClusterTwo = CassandraConnector(sc.getConf.set("spark.cassandra.connection.host", "127.0.0.2"))

  val rddFromClusterOne = {
    // Sets connectorToClusterOne as default connection for everything in this code block
    implicit val c = connectorToClusterOne
    sc.cassandraTable("ks","tab")
  }

  {
    //Sets connectorToClusterTwo as the default connection for everything in this code block
    implicit val c = connectorToClusterTwo
    rddFromClusterOne.saveToCassandra("ks","tab")
  }

}