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-611513716 > If there's a cluster, and the block is being written into single node only, seems an issue in HDFS then. The client which is in HDFS data nodes, will write a copy to itself. That is a common behavior. I am glad we get some common knowledge here :)
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