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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2025/09/01 02:50:00 UTC

[jira] [Resolved] (SPARK-53435) race condition in CachedRDDBuilder

     [ https://issues.apache.org/jira/browse/SPARK-53435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan resolved SPARK-53435.
---------------------------------
    Fix Version/s: 4.1.0
                   4.0.1
       Resolution: Fixed

Issue resolved by pull request 52174
[https://github.com/apache/spark/pull/52174]

> race condition in CachedRDDBuilder
> ----------------------------------
>
>                 Key: SPARK-53435
>                 URL: https://issues.apache.org/jira/browse/SPARK-53435
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 4.0.0
>            Reporter: Ziqi Liu
>            Assignee: Ziqi Liu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.1.0, 4.0.1
>
>
> There is race condition between `CachedRDDBuilder.cachedColumnBuffers` and `CachedRDDBuilder.clearCache`: when they interleave each other, `cachedColumnBuffers` might return a `nullptr`.
> This looks like a day-1 bug introduced from  https://github.com/apache/spark/commit/20ca208bcda6f22fe7d9fb54144de435b4237536#diff-4068fce361a50e3d32af2ba2d4231905f500e7b2da9f46d5ddd99b758c30fd43 



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