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Posted to issues@flink.apache.org by "Yuepeng Pan (Jira)" <ji...@apache.org> on 2021/10/14 14:01:00 UTC
[jira] [Comment Edited] (FLINK-24489) The size of entryCache &
eventsBufferCache in the SharedBuffer should be defined with a threshold to
limit the number of the elements in the cache
[ https://issues.apache.org/jira/browse/FLINK-24489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17428173#comment-17428173 ]
Yuepeng Pan edited comment on FLINK-24489 at 10/14/21, 2:00 PM:
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Thanks [~dwysakowicz] for the reply.
Sorry for the inaccurate description of this jira.
I am not sure the max capacity of the cache in some extreme cases. But it encountered the HEAP OOM in my CEP job, which contains great many NodeId & EventId & sharedBufferEdge objects in the hproof file.
And please let me know what's your opinion about the significance of introducing the threshold. Thank you.
was (Author: rocmarshal):
Thanks [~dwysakowicz] for the reply.
Sorry for the inaccurate description of this jira.
I am not sure the max capacity of the cache in some extreme cases. But it encountered the HEAP OOM in my CEP job, which contains great many NodeId & EventId & sharedBufferEdge objects in the hproof file.
> The size of entryCache & eventsBufferCache in the SharedBuffer should be defined with a threshold to limit the number of the elements in the cache
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
> 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: Yuepeng Pan
> Priority: Major
> Attachments: 截屏2021-10-13 20.28.17.png
>
>
> 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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