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https://issues.apache.org/jira/browse/SPARK-27495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Graves updated SPARK-27495:
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Summary: Support Stage level resource configuration and scheduling (was:
Support Stage level resource scheduling)
> Support Stage level resource configuration and scheduling
> ---------------------------------------------------------
>
> Key: SPARK-27495
> URL: https://issues.apache.org/jira/browse/SPARK-27495
> Project: Spark
> Issue Type: Story
> Components: Spark Core
> Affects Versions: 3.0.0
> Reporter: Thomas Graves
> Priority: Major
>
> Currently Spark supports CPU level scheduling and we are adding in
> accelerator aware scheduling with
> https://issues.apache.org/jira/browse/SPARK-24615, but both of those are
> scheduling via application level configurations. Meaning there is one
> configuration that is set for the entire lifetime of the application and the
> user can't change it between Spark jobs/stages within that application.
> Many times users have different requirements for different stages of their
> application so they want to be able to configure at the stage level what
> resources are required for that stage.
> For example, I might start a spark application which first does some ETL work
> that needs lots of cores to run many tasks in parallel, then once that is
> done I want to run some ML job and at that point I want GPU's, less CPU's,
> and more memory.
> With this Jira we want to add the ability for users to specify the resources
> for different stages.
> Note that https://issues.apache.org/jira/browse/SPARK-24615 had some
> discussions on this but this part of it was removed from that.
> We should come up with a proposal on how to do this.
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