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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/11/12 04:19:33 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng closed SPARK-4350.
--------------------------------
    Resolution: Not a Problem

Found the real problem somewhere else.

> 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: 1.0.2, 1.1.0, 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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