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https://issues.apache.org/jira/browse/HIVE-11663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14908481#comment-14908481
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Ashutosh Chauhan commented on HIVE-11663:
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Permanent udfs introduced in HIVE-6047 is to serve the usecase which you have
outlined. Wondering why using permanent udfs is not sufficient here?
> 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-11663-2.patch
>
> Original Estimate: 96h
> Time Spent: 96h
> Remaining Estimate: 0h
>
> 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 can add and remove at run-time, especially for hiveserver2.
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