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Posted to issues@flink.apache.org by "Piotr Nowojski (Jira)" <ji...@apache.org> on 2022/01/18 08:33:00 UTC

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

     [ https://issues.apache.org/jira/browse/FLINK-25646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski closed FLINK-25646.
----------------------------------
    Fix Version/s: 1.15.0
       Resolution: Fixed

merged commit 25f3706 into apache:master

> 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
>             Fix For: 1.15.0
>
>
> 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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