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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/10/23 11:32:25 UTC

[GitHub] [flink] zhijiangW commented on pull request #13595: [FLINK-19582][network] Introduce sort-merge based blocking shuffle to Flink

zhijiangW commented on pull request #13595:
URL: https://github.com/apache/flink/pull/13595#issuecomment-715286077


   @wsry , I am not quite sure whether we ever had the case of empty data for some subpartitions in any form of tests. 
   If not, we should verify such scenarios to guarantee no potential bugs in this new supplement partition.  As based on my previous experience, it is easy to trigger some corner case in logics if some subpartitions without any data until job finishes.


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