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https://issues.apache.org/jira/browse/IMPALA-12032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Riza Suminto resolved IMPALA-12032.
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Fix Version/s: Impala 4.2.0
Resolution: Fixed
> PROCESSING_COST_MIN_THREADS fail to cap minimum parallelism
> -----------------------------------------------------------
>
> Key: IMPALA-12032
> URL: https://issues.apache.org/jira/browse/IMPALA-12032
> Project: IMPALA
> Issue Type: Bug
> Reporter: Riza Suminto
> Assignee: Riza Suminto
> Priority: Major
> Fix For: Impala 4.2.0
>
>
> PROCESSING_COST_MIN_THREADS suppose to be a lower bound of per node
> parallelism when CPU costing algorithm adjust fragment parallelism across
> executor group set. But PlanFragment.adjustToMaxParallelism() does not take
> account of it during adjustment.
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