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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2019/03/23 16:27:00 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-23643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-23643.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 20793
[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
>            Assignee: Maxim Gekk
>            Priority: Trivial
>             Fix For: 3.0.0
>
>
> The hashSeed 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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