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https://issues.apache.org/jira/browse/SPARK-8202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14592487#comment-14592487
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Josh Rosen commented on SPARK-8202:
-----------------------------------
Fixed by Davies' PR for 1.4.1 and 1.5.0.
> PySpark: infinite loop during external sort
> --------------------------------------------
>
> Key: SPARK-8202
> URL: https://issues.apache.org/jira/browse/SPARK-8202
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 1.4.0
> Reporter: Davies Liu
> Assignee: Davies Liu
> Priority: Critical
> Fix For: 1.4.1, 1.5.0
>
>
> The batch size during external sort will grow up to max 10000, then shrink
> down to zero, causing infinite loop.
> Given the assumption that the items usually have similar size, so we don't
> need to adjust the batch size after first spill.
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