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Posted to issues@spark.apache.org by "Ruifeng Zheng (Jira)" <ji...@apache.org> on 2026/08/06 00:11:00 UTC

[jira] [Resolved] (SPARK-58587) Move final IsotonicRegression PAV pass to executor

     [ https://issues.apache.org/jira/browse/SPARK-58587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ruifeng Zheng resolved SPARK-58587.
-----------------------------------
    Fix Version/s: 4.4.0
       Resolution: Fixed

Issue resolved by pull request 57788
[https://github.com/apache/spark/pull/57788]

> Move final IsotonicRegression PAV pass to executor
> --------------------------------------------------
>
>                 Key: SPARK-58587
>                 URL: https://issues.apache.org/jira/browse/SPARK-58587
>             Project: Spark
>          Issue Type: Sub-task
>          Components: ML
>    Affects Versions: 5.0.0
>            Reporter: Ruifeng Zheng
>            Assignee: Ruifeng Zheng
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.4.0
>
>
> Move the final IsotonicRegression Pool Adjacent Violators pass from the driver to an executor after a spill-capable shuffle sort, reducing driver memory pressure before the final model is collected.\n\nDraft PR: https://github.com/apache/spark/pull/57788



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