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https://issues.apache.org/jira/browse/SPARK-40972?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingming Ge updated SPARK-40972:
--------------------------------
Description:
Because there are many empty files in the table, the partition num of
OptimizeLocalShuffleReader to optimize partition num is 1
!image-2022-10-31-15-53-19-751.png!
!image-2022-10-31-15-57-41-599.png!
!image-2022-10-31-15-50-36-435.png!
!image-2022-10-31-15-51-39-430.png!
was:
Because there are many empty files in the table, the partition num of
OptimizeLocalShuffleReader to optimize shuffle is 1
!image-2022-10-31-15-53-19-751.png!
!image-2022-10-31-15-57-41-599.png!
!image-2022-10-31-15-50-36-435.png!
!image-2022-10-31-15-51-39-430.png!
> OptimizeLocalShuffleReader causing data skew
> --------------------------------------------
>
> Key: SPARK-40972
> URL: https://issues.apache.org/jira/browse/SPARK-40972
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Mingming Ge
> Priority: Major
> Attachments: image-2022-10-31-15-50-36-435.png,
> image-2022-10-31-15-51-39-430.png, image-2022-10-31-15-53-19-751.png,
> image-2022-10-31-15-57-41-599.png
>
>
> Because there are many empty files in the table, the partition num of
> OptimizeLocalShuffleReader to optimize partition num is 1
> !image-2022-10-31-15-53-19-751.png!
> !image-2022-10-31-15-57-41-599.png!
> !image-2022-10-31-15-50-36-435.png!
>
>
> !image-2022-10-31-15-51-39-430.png!
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