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https://issues.apache.org/jira/browse/HIVE-12346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14993635#comment-14993635
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Chaoyu Tang commented on HIVE-12346:
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Failed tests are not related to this patch.
> Internally used variables in HiveConf should not be settable via command
> ------------------------------------------------------------------------
>
> Key: HIVE-12346
> URL: https://issues.apache.org/jira/browse/HIVE-12346
> Project: Hive
> Issue Type: Bug
> Components: Configuration
> Affects Versions: 1.2.1
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Attachments: HIVE-12346.1.patch, HIVE-12346.patch
>
>
> Some HiveConf variables such as hive.added.jars.path are only for internal
> use and should not be settable via set command.
> We saw a lot of cases that users mistakenly set these variables using set
> command despite some of them have been documented as "internal parameter" in
> Hive. The command usually succeeds but it sometimes does not effect, which
> causes some confusions. For example, the hive.added.jars.path can be set via
> set command but it is sometimes overridden by session resource jars during
> runtime.
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