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  1. Spark
  2. SPARK-31437

Try assigning tasks to existing executors by which required resources in ResourceProfile are satisfied

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 3.1.0
    • Fix Version/s: None
    • Component/s: Scheduler, Spark Core
    • Labels:
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      Description

      By the change in PR of SPARK-29154, submitted tasks are scheduled onto executors only if resource profile IDs strictly match. As a result Spark always starts new executors for customized ResourceProfiles.

      This limitation makes working with process-local jobs unfriendly. E.g. Task cores has been increased from 1 to 4 in a new stage, and executor has 8 slots, it is expected that 2 new tasks can be run on the existing executor but Spark starts new executors for new ResourceProfile. The behavior is unnecessary.

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              • Assignee:
                Unassigned
                Reporter:
                zhztheplayer Hongze Zhang
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                Dates

                • Created:
                  Updated: