[jira] [Commented] (SPARK-23643) XORShiftRandom.hashSeed allocates unnecessary memory

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-23643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16394205#comment-16394205 ] 

Apache Spark commented on SPARK-23643:
--------------------------------------

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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