bsidhom commented on issue #24462: [SPARK-26268][CORE] Do not resubmit tasks when executors are lost URL: https://github.com/apache/spark/pull/24462#issuecomment-486995523 @liupc The problem with the current situation is that you have to recompile and ship all of Spark core if you want to use a custom external shuffle manager. This configuration change allows you to use a custom shuffle manager as a "plugin" that you install alongside Spark. This substantially speeds compilation time and means that you don't need to make error-prone changes to the scheduler.
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