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https://issues.apache.org/jira/browse/SPARK-21685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122492#comment-16122492
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Joseph K. Bradley commented on SPARK-21685:
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Could you please point to more info, such as the Python wrappers you are
calling? I don't see enough info here to identify the problem.
> Params isSet in scala Transformer triggered by _setDefault in pyspark
> ---------------------------------------------------------------------
>
> Key: SPARK-21685
> URL: https://issues.apache.org/jira/browse/SPARK-21685
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 2.1.0
> Reporter: Ratan Rai Sur
>
> I'm trying to write a PySpark wrapper for a Transformer whose transform
> method includes the line
> {code:java}
> require(!(isSet(outputNodeName) && isSet(outputNodeIndex)), "Can't set both
> outputNodeName and outputNodeIndex")
> {code}
> This should only throw an exception when both of these parameters are
> explicitly set.
> In the PySpark wrapper for the Transformer, there is this line in ___init___
> {code:java}
> self._setDefault(outputNodeIndex=0)
> {code}
> Here is the line in the main python script showing how it is being configured
> {code:java}
> cntkModel =
> CNTKModel().setInputCol("images").setOutputCol("output").setModelLocation(spark,
> model.uri).setOutputNodeName("z")
> {code}
> As you can see, only setOutputNodeName is being explicitly set but the
> exception is still being thrown.
> If you need more context,
> https://github.com/RatanRSur/mmlspark/tree/default-cntkmodel-output is the
> branch with the code, the files I'm referring to here that are tracked are
> the following:
> src/cntk-model/src/main/scala/CNTKModel.scala
> notebooks/tests/301 - CIFAR10 CNTK CNN Evaluation.ipynb
> The pyspark wrapper code is autogenerated
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