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https://issues.apache.org/jira/browse/SPARK-56158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-56158:
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Labels: pull-request-available (was: )
> [CORE] Add ActiveProcessorCount JVM option support for local mode
> -----------------------------------------------------------------
>
> Key: SPARK-56158
> URL: https://issues.apache.org/jira/browse/SPARK-56158
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 4.2.0
> Reporter: John Zhuge
> Priority: Major
> Labels: pull-request-available
>
> SPARK-53209 added spark.driver.limitActiveProcessorCount.enabled to inject
> -XX:ActiveProcessorCount into YARN JVM launch commands.
> In local mode, Spark runs entirely in a single in-process JVM, so
> -XX:ActiveProcessorCount cannot be injected at runtime. This ticket
> investigates the right mechanism (e.g., auto-prepending to driver JVM options
> at submit time via SparkSubmit) so that local mode users on machines with
> many cores can benefit from the same CPU limiting behavior when each app only
> uses a few cores.
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