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https://issues.apache.org/jira/browse/FLINK-29923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17630260#comment-17630260
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Weijie Guo commented on FLINK-29923:
------------------------------------

Casued by FLINK-29298

> Hybrid Shuffle may face deadlock when running a task need to execute big size 
> data
> ----------------------------------------------------------------------------------
>
>                 Key: FLINK-29923
>                 URL: https://issues.apache.org/jira/browse/FLINK-29923
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Network
>    Affects Versions: 1.16.0
>            Reporter: AlexHu
>            Priority: Major
>         Attachments: 性能差距.png, 死锁2-select.png, 死锁检测.png
>
>
> The flink 1.16 offers hybrid shuffle to combine the superiority of blocking 
> shuffle and pipeline shuffle. But when I want to test this new feature I face 
> a problem that it may cause deadlock when it running. 
> Actually, it will run well at beginning. However, when it runs to a certain 
> number it may failure for the buffer size and if I set a bigger size it may 
> running without data execution like the picture. So I want to ask the cause 
> of this problem and a solution.



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