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Posted to issues@flink.apache.org by "Yuxin Tan (Jira)" <ji...@apache.org> on 2023/11/22 03:16:00 UTC

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

     [ https://issues.apache.org/jira/browse/FLINK-33612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yuxin Tan reassigned FLINK-33612:
---------------------------------

    Assignee: Yuxin Tan

> 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
>            Assignee: Yuxin Tan
>            Priority: Major
>
> 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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