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Posted to issues@flink.apache.org by "Mason Chen (Jira)" <ji...@apache.org> on 2022/01/13 22:01:00 UTC

[jira] [Commented] (FLINK-25646) Document buffer debloating issues with high parallelism

    [ https://issues.apache.org/jira/browse/FLINK-25646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17475778#comment-17475778 ] 

Mason Chen commented on FLINK-25646:
------------------------------------

Hi [~akalashnikov], thanks for the documentation! Could you attach a reference to the benchmark? I'd like to take a look

> Document buffer debloating issues with high parallelism
> -------------------------------------------------------
>
>                 Key: FLINK-25646
>                 URL: https://issues.apache.org/jira/browse/FLINK-25646
>             Project: Flink
>          Issue Type: Improvement
>          Components: Documentation, Runtime / Network
>    Affects Versions: 1.14.0
>            Reporter: Anton Kalashnikov
>            Assignee: Anton Kalashnikov
>            Priority: Major
>              Labels: pull-request-available
>
> According to last benchmarks, there are some problems with buffer debloat when job has high parallelism. The high parallelism means the different value from job to job but in general it is more than 200. So it makes sense to document that problem and propose the solution - increasing the number of buffers.



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