cassandra-connector-assembly-2.0.0 construido a partir degithub proyecto.

conScala 2.11.8, cassandra-driver-core-3.1.0

sc.cassandraTable("mykeyspace", "mytable").select("something").where("key=?", key).mapPartitions(par => {
    par.map({ row => (row.getString("something"), 1 ) })
})
.reduceByKey(_ + _).collect().foreach(println)

El mismo trabajo funciona bien para leer menos datos masivos

java.lang.NoSuchMethodError: com.datastax.driver.core.ResultSet.fetchMoreResults()Lshade/com/datastax/spark/connector/google/common/util/concurrent/ListenableFuture;
    at com.datastax.spark.connector.rdd.reader.PrefetchingResultSetIterator.maybePrefetch(PrefetchingResultSetIterator.scala:26)
    at com.datastax.spark.connector.rdd.reader.PrefetchingResultSetIterator.next(PrefetchingResultSetIterator.scala:39)
    at com.datastax.spark.connector.rdd.reader.PrefetchingResultSetIterator.next(PrefetchingResultSetIterator.scala:17)
    at scala.collection.Iterator$anon$11.next(Iterator.scala:409)
    at scala.collection.Iterator$anon$11.next(Iterator.scala:409)
    at scala.collection.Iterator$anon$12.next(Iterator.scala:444)
    at com.datastax.spark.connector.util.CountingIterator.next(CountingIterator.scala:16)
    at scala.collection.Iterator$anon$11.next(Iterator.scala:409)
    at org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:194)
    at org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:63)
    at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:79)
    at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:47)
    at org.apache.spark.scheduler.Task.run(Task.scala:85)
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

¿Alguien puede sugerir o señalar el problema y una posible solución?