org.apache.spark.SparkException

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  • Re: pyspark not working
    via by prateek arora,
  • Spark: Length of List Tuple
    via Stack Overflow by Stephan Kristyn
    ,
    • org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 4.0 failed 1 times, most recent failure: Lost task 0.0 in stage 4.0 (TID 7, localhost): org.apache.spark.api.python.PythonException: Traceback (most recent call last): File "c:\spark\python\lib\pyspark.zip\pyspark\worker.py", line 172, in main File "c:\spark\python\lib\pyspark.zip\pyspark\worker.py", line 167, in process File "c:\spark\python\lib\pyspark.zip\pyspark\serializers.py", line 263, in dump_stream vs = list(itertools.islice(iterator, batch)) File "c:\spark\python\lib\pyspark.zip\pyspark\rdd.py", line 1306, in takeUpToNumLeft File "c:/sparkcourse/test-recommendation.py", line 8, in get_counts_and_averages return ID_and_ratings_tuple[0], (nratings, float(sum(x for x in ID_and_ratings_tuple[1]))
    • ratings) TypeError: unsupported operand type(s) for +: 'int' and 'str' at org.apache.spark.api.python.PythonRunner$$anon$1.read(PythonRDD.scala:193) at org.apache.spark.api.python.PythonRunner$$anon$1.<init>(PythonRDD.scala:234) at org.apache.spark.api.python.PythonRunner.compute(PythonRDD.scala:152) at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:63) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319) at org.apache.spark.rdd.RDD.iterator(RDD.scala:283) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70) at org.apache.spark.scheduler.Task.run(Task.scala:85) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

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