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https://issues.apache.org/jira/browse/FLINK-31842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-31842:
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Labels: pull-request-available (was: )
> calculate task executor's utilization only when used
> ----------------------------------------------------
>
> Key: FLINK-31842
> URL: https://issues.apache.org/jira/browse/FLINK-31842
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Reporter: Weihua Hu
> Priority: Major
> Labels: pull-request-available
>
> Currently DefaultAllocatedSlotPool#getFreeSlotsInformation always calculates
> the taskExecutorUtilization. This causes task schedules to be too slow when
> there are lots of slots, such as 20000 slots total. But only the
> EvenlySpreadOutLocationPreferenceSlotSelectionStrategy uses this utilization.
> So I would like to move the calculation of taskExecutorUtilization to usage.
> DefaultAllocatedSlotPool provides a function: getTaskExecutorUtilization, and
> is only used in EvenlySpreadOutLocationPreferenceSlotSelectionStrategy.
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