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https://issues.apache.org/jira/browse/SPARK-23643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16394205#comment-16394205
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Apache Spark commented on SPARK-23643:
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User 'MaxGekk' has created a pull request for this issue:
https://github.com/apache/spark/pull/20793
> XORShiftRandom.hashSeed allocates unnecessary memory
> ----------------------------------------------------
>
> Key: SPARK-23643
> URL: https://issues.apache.org/jira/browse/SPARK-23643
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: Maxim Gekk
> Priority: Trivial
>
> The setSeed method allocates 64 bytes buffer and puts only 8 bytes of the
> seed parameter into it. Other bytes are always zero and could be easily
> excluded from hash calculation.
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