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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/11/11 23:29:34 UTC

[jira] [Created] (SPARK-4350) aggregate doesn't make copies of zeroValue in local mode

Xiangrui Meng created SPARK-4350:
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             Summary: aggregate doesn't make copies of zeroValue in local mode
                 Key: SPARK-4350
                 URL: https://issues.apache.org/jira/browse/SPARK-4350
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 1.1.0, 1.0.2, 1.2.0
            Reporter: Xiangrui Meng
            Priority: Critical


RDD.aggregate makes a copy of zeroValue to collect the task result. However, it doesn't make copies of zeroValue for each partition. In local mode, this causes race conditions.



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