ChenjunZou commented on issue #28168: [SPARK-31395][CORE]reverse preferred location to make schedule more even URL: https://github.com/apache/spark/pull/28168#issuecomment-611488292 > Closing this - seems you just want to don't take the locality into account, which is already possible by the configuration `spark.shuffle.reduceLocality.enabled` or `spark.locality.wait` @HyukjinKwon I don't think spark.shuffle.reduceLocality.enabled or spark.locality.wait is enough to solve my scenario. Because my locality skew happens in the map stage, Second I already set scheduler.locality.wait to 0. It still has a hot spot.
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