HyukjinKwon commented on issue #28168: [SPARK-31395][CORE]reverse preferred location to make schedule more even URL: https://github.com/apache/spark/pull/28168#issuecomment-611493340 If that's the case, we should fix the configurations to take the locality into account, rather than reversing the hosts. @ChenjunZou, please clarify why and how reversing the hosts can resolve your problem. From what you said, reversing will just switch the hot spot nodes to happen.
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