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Posted to issues@flink.apache.org by "Dawid Wysakowicz (Jira)" <ji...@apache.org> on 2021/10/12 07:47:00 UTC

[jira] [Commented] (FLINK-24489) The size of entryCache in the SharedBuffer should be defined with a threshold to avoid OOM

    [ https://issues.apache.org/jira/browse/FLINK-24489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17427514#comment-17427514 ] 

Dawid Wysakowicz commented on FLINK-24489:
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I believe it is a valid feature request. Bear in mind, the threshold would have to be implemented on the number of entries, not memory size as we do not know how much memory those records would occupy as we keep them on the heap. It might not be straightforward to pick a valid value for such a parameter.

> The size of entryCache in the SharedBuffer should be defined with a threshold to avoid OOM
> ------------------------------------------------------------------------------------------
>
>                 Key: FLINK-24489
>                 URL: https://issues.apache.org/jira/browse/FLINK-24489
>             Project: Flink
>          Issue Type: Improvement
>          Components: Library / CEP
>    Affects Versions: 1.10.0, 1.11.0, 1.12.0, 1.13.0, 1.14.0
>            Reporter: Roc Marshal
>            Priority: Major
>
> source code : [here|https://github.com/apache/flink/blob/c3cb886ee73b5fee23b2bccff0f5e4d45a30b3a1/flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/sharedbuffer/SharedBuffer.java#L79]
>  



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