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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13596) HS2 should be able to get UDFs on demand from metastore
Date Sat, 30 Apr 2016 07:47:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265227#comment-15265227
] 

Lefty Leverenz commented on HIVE-13596:
---------------------------------------

Doc note:  This adds *hive.allow.udf.load.on.demand* to HiveConf.java so it will need to be
documented in the wiki for release 2.1.0.

* [Configuration Properties -- Query and DDL Execution | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution]

TODOC2.1 label added to this issue.

> HS2 should be able to get UDFs on demand from metastore
> -------------------------------------------------------
>
>                 Key: HIVE-13596
>                 URL: https://issues.apache.org/jira/browse/HIVE-13596
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>              Labels: TODOC2.1
>             Fix For: 2.1.0
>
>         Attachments: HIVE-13596.01.patch, HIVE-13596.02.patch, HIVE-13596.03.patch, HIVE-13596.patch
>
>
> When multiple HS2s are run, creating a permanent fn is only executed on one of them,
and the other HS2s don't get the new function. Unlike say with tables, where we always get
stuff from db on demand, fns are registered at certain points in the code and if the new one
is not registered, it will not be available. 
> We should restore the pre-HIVE-2573 behavior of being able to refresh the UDFs on demand.



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