[jira] [Updated] (HIVE-13596) HS2 should refresh UDFs more frequently, at least in multi-HS2 case

["Sergey Shelukhin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-13596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Shelukhin updated HIVE-13596:
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    Summary: HS2 should refresh UDFs more frequently, at least in multi-HS2 case  (was: HS2 should refresh UDFs for each session, at least in multi-HS2 case)

> HS2 should refresh UDFs more frequently, at least in multi-HS2 case
> -------------------------------------------------------------------
>
>                 Key: HIVE-13596
>                 URL: https://issues.apache.org/jira/browse/HIVE-13596
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>
> 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 could change the code to refresh the udf by name if it's missing, similar to getting a table or whatever; or we could refresh UDFs when a session is started in multi-HS2 case, or at some other convenient point.



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