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Posted to dev@hive.apache.org by "Prasad Mujumdar (JIRA)" <ji...@apache.org> on 2013/08/01 19:43:51 UTC
[jira] [Commented] (HIVE-4470) HS2 should disable local query
execution
[ https://issues.apache.org/jira/browse/HIVE-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13726650#comment-13726650 ]
Prasad Mujumdar commented on HIVE-4470:
---------------------------------------
The restrict list parameter itself is part of the list implicitly.
> 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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