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https://issues.apache.org/jira/browse/HIVE-8424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14168823#comment-14168823
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Szehon Ho commented on HIVE-8424:
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As per my limited understanding, YARN fair-scheduler maps user to queue for
resource-management. The flag will determine which user Hive will use to
determine the YARN queue when impersonation is off. As you said, its 'hive' if
flag if false, logged-in user if flag is true. Otherwise, its always logged-in
user.
Behind the scenes, the queue lookup method is called by Hive, but is YARN code.
Hope that captures it.
> Support fair scheduler user queue mapping in non-impersonation mode
> -------------------------------------------------------------------
>
> Key: HIVE-8424
> URL: https://issues.apache.org/jira/browse/HIVE-8424
> Project: Hive
> Issue Type: Improvement
> Components: Shims
> Reporter: Mohit Sabharwal
> Assignee: Mohit Sabharwal
> Attachments: HIVE-8424.1.patch, HIVE-8424.patch
>
>
> Under non-impersonation mode, all MR jobs run as the hive system user. The
> default scheduler queue mapping is one queue per user. This is problematic
> for users who use the queues to regulate and track their MR resource usage.
> Yarn exposes an API to retrieve the fair scheduler queue mapping, which we
> can use to set the appropriate MR queue for the current user.
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