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https://issues.apache.org/jira/browse/HIVE-11663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14716140#comment-14716140
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Lefty Leverenz commented on HIVE-11663:
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This issue should not be marked Resolved until the patch has been reviewed, 
tested, and committed.  Please see "How To Contribute":

* [How To Contribute -- Review Process | 
https://cwiki.apache.org/confluence/display/Hive/HowToContribute#HowToContribute-ReviewProcess]
* [How To Contribute -- Contributing Your Work | 
https://cwiki.apache.org/confluence/display/Hive/HowToContribute#HowToContribute-ContributingYourWork]

> Auto load/unload custom udf function for hive cli and hiveserver2
> -----------------------------------------------------------------
>
>                 Key: HIVE-11663
>                 URL: https://issues.apache.org/jira/browse/HIVE-11663
>             Project: Hive
>          Issue Type: Improvement
>          Components: CLI, Configuration
>    Affects Versions: 0.14.0, 1.0.0, 1.0.1, 1.1.1, 1.2.1
>            Reporter: liuzongquan
>            Assignee: liuzongquan
>              Labels: features, patch
>         Attachments: HIVE-11663.patch
>
>   Original Estimate: 96h
>  Remaining Estimate: 96h
>
> when adding custom functions used in hiveserver2, the most method is re-build 
> the hive source code, re-dist and restart hiveserver2. This way will produce 
> big cost for service user and cluster manager. The best way, in my opinion, 
> the custom udf should be like a plugin to the hiveserver2 and hive cli, and 
> users should be add and remove at run-time, especially for hiveserver2.



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