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https://issues.apache.org/jira/browse/SPARK-23391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-23391:
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Assignee: (was: Apache Spark)
> It may lead to overflow for some integer multiplication
> --------------------------------------------------------
>
> Key: SPARK-23391
> URL: https://issues.apache.org/jira/browse/SPARK-23391
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: liuxian
> Priority: Major
>
> In the {{getBlockData}},{{blockId.reduceId}} is the {{Int}} type, when it is
> greater than 2^28, {{blockId.reduceId*8}} will overflow.
> In the _decompress0, len_ and _unitSize are {{Int}}_ type, so _len *
> unitSize_ may lead to overflow
>
>
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