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https://issues.apache.org/jira/browse/HIVE-13051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15187811#comment-15187811
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Sergey Shelukhin commented on HIVE-13051:
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Backported to branch-2.0 and branch-1
> Deadline class has numerous issues
> ----------------------------------
>
> Key: HIVE-13051
> URL: https://issues.apache.org/jira/browse/HIVE-13051
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Fix For: 1.3.0, 2.1.0, 2.0.1
>
> Attachments: HIVE-13051.01.patch, HIVE-13051.patch
>
>
> currentTimeMillis is not a correct way to measure intervals of time; it can
> easily be adjusted e.g. by ntpd. System.nanoTime should be used.
> It's also unsafe for failure cases, and doesn't appear to update from config
> updates correctly.
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