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https://issues.apache.org/jira/browse/HIVE-21719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17129333#comment-17129333
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David Mollitor commented on HIVE-21719:
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The PR has been closed because of it being stale.
I have to believe there is greater overhead with this patch since it
instantiates a new Random object every time. If you would like to retry this
patch, I can look at it, but please use {{ThreadLocalRandom}} to avoid the
instantiation.
> Use Random.nextDouble instead of Math.random
> --------------------------------------------
>
> Key: HIVE-21719
> URL: https://issues.apache.org/jira/browse/HIVE-21719
> Project: Hive
> Issue Type: Improvement
> Reporter: bd2019us
> Priority: Trivial
> Attachments: HIVE-21719.patch
>
>
> Performance overhead from Math.random can be reduced by using
> Random.nextDouble instead.
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