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https://issues.apache.org/jira/browse/SPARK-30074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-30074.
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Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 26664
[https://github.com/apache/spark/pull/26664]
> The maxNumPostShufflePartitions config should obey
> reducePostShufflePartitions enabled
> --------------------------------------------------------------------------------------
>
> Key: SPARK-30074
> URL: https://issues.apache.org/jira/browse/SPARK-30074
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yuanjian Li
> Assignee: Yuanjian Li
> Priority: Major
> Fix For: 3.0.0
>
>
> The config "spark.sql.adaptive.shuffle.maxNumPostShufflePartitions" should be
> controlled by not only "spark.sql.adaptive.enabled", but also
> "spark.sql.adaptive.shuffle.reducePostShufflePartitions.enabled", that keeps
> the same behavior of minNumPostShufflePartitions and
> targetPostShuffleInputSize.
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