[jira] [Created] (SPARK-9021) Have pyspark's RDD.aggregate() make a deepcopy of zeroValue for each partition

["Nicholas Hwang (JIRA)" <ji...@apache.org>]

Nicholas Hwang created SPARK-9021:
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             Summary: Have pyspark's RDD.aggregate() make a deepcopy of zeroValue for each partition
                 Key: SPARK-9021
                 URL: https://issues.apache.org/jira/browse/SPARK-9021
             Project: Spark
          Issue Type: Bug
          Components: PySpark
    Affects Versions: 1.4.0
         Environment: Ubuntu 14.04 LTS
            Reporter: Nicholas Hwang


Please see pull request for more information.

I initially "patched" this arguably unexpected behavior by serializing zeroValue, but ended up mimicking the deepcopy approach used by other RDD methods. I also contemplated having fold/aggregate accept "zero value generator functions" instead of an actual object, but that obviously changes the API.

Looking forward to hearing back and/or being educated on how I'm inappropriately using this functionality (relatively new to Spark and functional programming). Thanks!



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