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Posted to issues@spark.apache.org by "Davies Liu (JIRA)" <ji...@apache.org> on 2014/11/12 18:59:33 UTC

[jira] [Created] (SPARK-4369) TreeModel.predict does not work with RDD

Davies Liu created SPARK-4369:
---------------------------------

             Summary: TreeModel.predict does not work with RDD
                 Key: SPARK-4369
                 URL: https://issues.apache.org/jira/browse/SPARK-4369
             Project: Spark
          Issue Type: Bug
          Components: MLlib, PySpark
    Affects Versions: 1.2.0
            Reporter: Davies Liu
            Priority: Blocker


{code}
Stack Trace
-------------
Traceback (most recent call last):
  File "/home/rprabhu/Coding/github/SDNDDoS/classification/DecisionTree.py",
line 49, in <module>
    predictions = model.predict(parsedData.map(lambda x: x.features))
  File "/home/rprabhu/Software/spark/python/pyspark/mllib/tree.py", line 42,
in predict
    return self.call("predict", x.map(_convert_to_vector))
  File "/home/rprabhu/Software/spark/python/pyspark/mllib/common.py", line
140, in call
    return callJavaFunc(self._sc, getattr(self._java_model, name), *a)
  File "/home/rprabhu/Software/spark/python/pyspark/mllib/common.py", line
117, in callJavaFunc
    return _java2py(sc, func(*args))
  File
"/home/rprabhu/Software/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py",
line 538, in __call__
  File
"/home/rprabhu/Software/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py",
line 304, in get_return_value
py4j.protocol.Py4JError: An error occurred while calling o39.predict. Trace:
py4j.Py4JException: Method predict([class
org.apache.spark.api.java.JavaRDD]) does not exist
        at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:333)
        at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:342)
        at py4j.Gateway.invoke(Gateway.java:252)
        at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
        at py4j.commands.CallCommand.execute(CallCommand.java:79)
        at py4j.GatewayConnection.run(GatewayConnection.java:207)
        at java.lang.Thread.run(Thread.java:745)
{code}



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