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From JoshRosen <>
Subject [GitHub] spark pull request: [SPARK-1630] Turn Null of Java/Scala into None...
Date Tue, 29 Jul 2014 14:44:33 GMT
Github user JoshRosen commented on a diff in the pull request:
    --- Diff: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala ---
    @@ -344,7 +345,12 @@ private[spark] object PythonRDD extends Logging {
                   throw new SparkException("Unexpected Tuple2 element type " + pair._1.getClass)
             case other =>
    -          throw new SparkException("Unexpected element type " + first.getClass)
    +          if (other == null) {
    +            dataOut.writeInt(SpecialLengths.NULL)
    +            writeIteratorToStream(iter, dataOut)
    --- End diff --
    This method isn't tail-recursive, so this will cause a StackOverflow if you try to write
an iterator with thousands of consecutive nulls.

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