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https://issues.apache.org/jira/browse/SPARK-32294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17157065#comment-17157065
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Hyukjin Kwon commented on SPARK-32294:
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Thanks for filing the issue, [~Tagar].
> GroupedData Pandas UDF 2Gb limit
> --------------------------------
>
> Key: SPARK-32294
> URL: https://issues.apache.org/jira/browse/SPARK-32294
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Ruslan Dautkhanov
> Priority: Major
>
> `spark.sql.execution.arrow.maxRecordsPerBatch` is not respected for
> GroupedData, the whole group is passed to Pandas UDF at once, which can cause
> various 2Gb limitations on Arrow side (and in current versions of Arrow, also
> 2Gb limitation on Netty allocator side) -
> https://issues.apache.org/jira/browse/ARROW-4890
> Would be great to consider feeding GroupedData into a pandas UDF in batches
> to solve this issue.
> cc [~hyukjin.kwon]
>
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