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Posted to issues@flink.apache.org by "Yingjie Cao (Jira)" <ji...@apache.org> on 2020/12/24 04:00:01 UTC

[jira] [Updated] (FLINK-20758) Use region file mechanism for shuffle data reading before we switch to managed memory

     [ https://issues.apache.org/jira/browse/FLINK-20758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yingjie Cao updated FLINK-20758:
--------------------------------
    Labels: usability  (was: )

> Use region file mechanism for shuffle data reading before we switch to managed memory
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-20758
>                 URL: https://issues.apache.org/jira/browse/FLINK-20758
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Network
>    Affects Versions: 1.12.0
>            Reporter: Yingjie Cao
>            Priority: Major
>              Labels: usability
>             Fix For: 1.12.2
>
>
> FLINK-15981 implemented region file based data reader to solve the direct memory OOM issue introduced by usage of unmanaged direct memory, however only for BoundedBlockingResultPartition. We can introduce it to sort-merge based blocking shuffle to avoid the similar direct memory OOM problem which can improve the usability a lot.



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