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https://issues.apache.org/jira/browse/HIVE-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13720379#comment-13720379
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Edward Capriolo commented on HIVE-4470:
---------------------------------------
{quote}
By default, HS2 should set these parameters to disallow local execution or send
and error message if user tries to set these.
{quote}
I do not agree with this. I can understand the argument for making the default
off, but explicitly disabling it is too extreme.
> HS2 should disable local query execution
> ----------------------------------------
>
> Key: HIVE-4470
> URL: https://issues.apache.org/jira/browse/HIVE-4470
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Thejas M Nair
>
> Hive can run queries in local mode (instead of using a cluster), if the size
> is small. This happens when "hive.exec.mode.local.auto" is set to true.
> This would affect the stability of the hive server2 node, if you have heavy
> query processing happening on it. Bugs in udfs triggered by a bad record can
> potentially add very heavy load making the server inaccessible.
> By default, HS2 should set these parameters to disallow local execution or
> send and error message if user tries to set these.
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