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https://issues.apache.org/jira/browse/SPARK-26665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shixiong Zhu updated SPARK-26665:
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Affects Version/s: 2.3.2
> BlockTransferService.fetchBlockSync may hang forever
> ----------------------------------------------------
>
> Key: SPARK-26665
> URL: https://issues.apache.org/jira/browse/SPARK-26665
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.2, 2.4.0
> Reporter: Shixiong Zhu
> Assignee: Shixiong Zhu
> Priority: Major
> Fix For: 2.3.4, 2.4.1, 3.0.0
>
>
> `ByteBuffer.allocate` may throw OutOfMemoryError when the block is large but
> no enough memory is available. However, when this happens, right now
> BlockTransferService.fetchBlockSync will just hang forever.
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