Chap 14, the output of Builder.scala is not available for classifier.scala

[saksim]

Dear mahmoudparsian,
Sorry to bother you.
Actually, it is known that two methods can be used in the propose of saving output when one scala-spark program finishes. As you do in the "NaiveBayesClassifierBuilder.scala", the pt table saved as part-* file in the HDFS. However, my issue is relative to this. RDD's method,called saveAsObjectFile, will return NULL first, and with a sequenceFile output second. Thus, in the second spark program (NaiveBayesClassifier.scala), a NullPointerException throws. In the another hand, if i use saveAsTextFile, the second spark program will show a exception that "A sequenceFile is required". Thus, I'm not sure how to deal with this issue in your scala programme. Could you give me any tips?

Best Wishes,
WeiWei HE