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From "Alice Fan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-20020) Hive contrib jar should not be in lib
Date Sat, 01 Sep 2018 16:39:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16599666#comment-16599666
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Alice Fan commented on HIVE-20020:
----------------------------------

Hi [~aihuaxu],
Can you please help to review the change. Thanks!

> Hive contrib jar should not be in lib
> -------------------------------------
>
>                 Key: HIVE-20020
>                 URL: https://issues.apache.org/jira/browse/HIVE-20020
>             Project: Hive
>          Issue Type: Improvement
>          Components: Contrib
>            Reporter: Johndee Burks
>            Assignee: Alice Fan
>            Priority: Trivial
>             Fix For: 4.0.0
>
>         Attachments: HIVE-20020.3.patch
>
>
> Currently the way hive is packaged it includes hive-contrib-<version>.jar in lib,
we should not include it here because it is picked up by services like HS2. This creates a
situation in which experimental features such as the [MultiDelimitSerDe|https://github.com/apache/hive/blob/master/contrib/src/java/org/apache/hadoop/hive/contrib/serde2/MultiDelimitSerDe.java] are
accessible without understanding how to really install and use it. For example you can create
a table using HS2 via beeline with the aforementioned SerDe and it will work as long you do
not do M/R jobs. The M/R jobs do not work because the SerDe is not in aux to get shipped into
distcache. I propose we do not package it this way and if someone would like to leverage an
experimental feature they can add it manually to their environment. 



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