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Posted to issues@flink.apache.org by "Yingjie Cao (Jira)" <ji...@apache.org> on 2020/12/23 04:33:00 UTC

[jira] [Updated] (FLINK-20740) Use managed memory to avoid direct memory OOM error for sort-merge shuffle

     [ https://issues.apache.org/jira/browse/FLINK-20740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yingjie Cao updated FLINK-20740:
--------------------------------
    Summary: Use managed memory to avoid direct memory OOM error for sort-merge shuffle  (was: Use managed memory to avoid direct memory OOM error)

> Use managed memory to avoid direct memory OOM error for sort-merge shuffle
> --------------------------------------------------------------------------
>
>                 Key: FLINK-20740
>                 URL: https://issues.apache.org/jira/browse/FLINK-20740
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Network
>    Affects Versions: 1.12.0
>            Reporter: Yingjie Cao
>            Priority: Major
>             Fix For: 1.13.0
>
>
> Currently, sort-merge blocking shuffle uses some unmanaged memory for data writing and reading, which means users must increase the size of direct memory, otherwise, one may encounter direct memory OOM error, which is really bad for usability.



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