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From "Jason Dere (JIRA)" <>
Subject [jira] [Commented] (HIVE-2573) Create per-session function registry
Date Mon, 06 Oct 2014 22:17:35 GMT


Jason Dere commented on HIVE-2573:

So session-permanent is not possible in the sense that it should be accessible only for the
True, permanent functions are not restricted to only being used in one session.  However the
function may need to get looked up/loaded for each session that uses it (see HIVE-6672). As
I said earlier though, I think it should ok for permanent UDFs to go into the system function

I think it would be better to investigate META-INF in jar files which should be added to session,
to register temporary functions. How about that?
Not sure I understand this - is the idea here to automatically register temp functions for
Jars that the user adds to their session, rather than requiring users to run CREATE TEMPORARY

> Create per-session function registry 
> -------------------------------------
>                 Key: HIVE-2573
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Server Infrastructure
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>         Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2573.D3231.1.patch, HIVE-2573.1.patch.txt,
HIVE-2573.2.patch.txt, HIVE-2573.3.patch.txt, HIVE-2573.4.patch.txt
> Currently the function registry is shared resource and could be overrided by other users
when using HiveServer. If per-session function registry is provided, this situation could
be prevented.

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