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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/02/12 03:29:00 UTC
[jira] [Commented] (SPARK-23391) It may lead to overflow for some
integer multiplication
[ https://issues.apache.org/jira/browse/SPARK-23391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16360263#comment-16360263 ]
Apache Spark commented on SPARK-23391:
--------------------------------------
User '10110346' has created a pull request for this issue:
https://github.com/apache/spark/pull/20581
> 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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