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Posted to issues@flink.apache.org by "Yuxin Tan (Jira)" <ji...@apache.org> on 2023/11/22 03:15:00 UTC

[jira] [Created] (FLINK-33612) The table plan of hybrid shuffle may introduce additional blocking edges occasionally

Yuxin Tan created FLINK-33612:
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             Summary: The table plan of hybrid shuffle may introduce additional blocking edges occasionally
                 Key: FLINK-33612
                 URL: https://issues.apache.org/jira/browse/FLINK-33612
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.19.0
            Reporter: Yuxin Tan


To enhance the performance of hybrid shuffle, it is imperative to address the inconsistency between hybrid shuffle mode and blocking shuffle mode in certain query plans of TPC-DS (such as q88.sql, q14a.sql, q14b.sql, etc). 
In hybrid shuffle mode, these plans introduce additional blocking shuffle edges and result in increased shuffle times, potentially impacting overall efficiency. 



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