Ngone51 commented on pull request #33477:
URL: https://github.com/apache/spark/pull/33477#issuecomment-884712661


   > Once a job in a Spark application completes, the shuffle files are cleaned 
up by the executors.
   
   Actually, it's cleaned up by the `ContextCleaner` when the shuffle 
dependency can be GCed. Job completion doesn't ensure that. Could you update 
the description to make it more accurate?


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