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https://issues.apache.org/jira/browse/SPARK-31034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-31034.
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Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 27786
[https://github.com/apache/spark/pull/27786]
> ShuffleBlockFetcherIterator may can't create request for last group
> -------------------------------------------------------------------
>
> Key: SPARK-31034
> URL: https://issues.apache.org/jira/browse/SPARK-31034
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.0.0
> Reporter: wuyi
> Assignee: wuyi
> Priority: Major
> Fix For: 3.0.0
>
>
> When the size of all blocks is less than targetRemoteRequestSize and the size
> of last block group is less than maxBlocksInFlightPerAddress,
> ShuffleBlockFetcherIterator will not create a request for the last group.
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