[GitHub] [spark] felixcheung commented on issue #23377: [SPARK-26439][CORE][WIP] Introduce WorkerOffer reservation mechanism for Barrier TaskSet

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felixcheung commented on issue #23377: [SPARK-26439][CORE][WIP] Introduce WorkerOffer reservation mechanism for Barrier TaskSet
URL: https://github.com/apache/spark/pull/23377#issuecomment-471246065
 
 
   thanks @Ngone51 - I think you did bring up some very good point here in your description, and would be precisely what I think we would need to get barrier scheduling actually useful for its intention use cases. would you mind thinking about a way this could be done with smaller changes? also welcome to bring the design discussion to dev@spark.apache.org

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