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https://issues.apache.org/jira/browse/SPARK-56410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-56410:
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Labels: pull-request-available (was: )
> Add bounded k-way merge support in UnsafeExternalSorter
> -------------------------------------------------------
>
> Key: SPARK-56410
> URL: https://issues.apache.org/jira/browse/SPARK-56410
> Project: Spark
> Issue Type: Task
> Components: Spark Core, SQL
> Affects Versions: 4.1.1
> Reporter: Tengfei Huang
> Priority: Major
> Labels: pull-request-available
>
> Currently the UnsafeExternalSorter will merge all the spills at once which
> will need lots of memory, increases OOM risks for large jobs.
> Propose to add bounded k-way merge to remove the risk.
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