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https://issues.apache.org/jira/browse/FLINK-10996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16698304#comment-16698304
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Stephan Ewen commented on FLINK-10996:
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+1 that sounds like it is needed to harden CEP.
If you want to contribute a fix, can you please describe here briefly how you
intend to implement this?
> Enable state ttl in cep
> -----------------------
>
> Key: FLINK-10996
> URL: https://issues.apache.org/jira/browse/FLINK-10996
> Project: Flink
> Issue Type: Improvement
> Components: CEP
> Affects Versions: 1.7.1
> Reporter: aitozi
> Assignee: aitozi
> Priority: Major
> Fix For: 1.7.1
>
>
> In flink cep, although the within clause can clean up the data when data is
> expire. But If the specific key data never come again, the partial matched
> data will not be deleted again which will lead to the state leak. With the
> state ttl feature support by flink runtime, we has the ability to expire the
> correlative data asyncly .
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