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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/03/14 04:27:00 UTC

[jira] [Updated] (FLINK-21778) Use heap memory instead of direct memory as index entry cache for sort-merge shuffle

     [ https://issues.apache.org/jira/browse/FLINK-21778?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-21778:
-----------------------------------
    Labels: pull-request-available  (was: )

> Use heap memory instead of direct memory as index entry cache for sort-merge shuffle
> ------------------------------------------------------------------------------------
>
>                 Key: FLINK-21778
>                 URL: https://issues.apache.org/jira/browse/FLINK-21778
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Network
>    Affects Versions: 1.12.0
>            Reporter: Yingjie Cao
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.13.0
>
>
> Currently, the sort-merge shuffle implementation uses a piece of direct memory as index entry cache for acceleration. We can use heap memory instead to reduce the usage of direct memory which further reduces the possibility of OutOfMemoryError.



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