[GitHub] [druid] FrankChen021 commented on issue #9940: Improve Performance With Multithreaded Kill Unused Segments Task

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FrankChen021 commented on issue #9940:
URL: https://github.com/apache/druid/issues/9940#issuecomment-640714445


   @jihoonson I agree with you, it's druid's responsibility to break down a large task into smaller tasks and schedule these tasks simultaneously. 
   
   One of what limits this idea is the static configuration of number of task slots. Can the numbers of subtasks plus the number of task being executed exceed the number of task slots ? If can't, what if there's only one task slot left at the time a large kill task is submitted? It involves many details.


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