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https://issues.apache.org/jira/browse/IMPALA-8998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-8998 started by Tim Armstrong.
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> Admission control accounting for mt_dop
> ---------------------------------------
>
> Key: IMPALA-8998
> URL: https://issues.apache.org/jira/browse/IMPALA-8998
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
>
> We should account for the degree of parallelism that the query runs with on a
> backend to avoid overadmitting too many parallel queries.
> We could probably simply count the effective degree of parallelism (max #
> instances of a fragment on that backend) toward the number of slots in
> admission control (although slots are not enabled for the default group yet -
> see IMPALA-8757).
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