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Posted to issues@flink.apache.org by "Yuan Zhu (Jira)" <ji...@apache.org> on 2022/03/25 06:30:00 UTC

[jira] [Commented] (FLINK-25409) Add cache metric to LookupFunction

    [ https://issues.apache.org/jira/browse/FLINK-25409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17512210#comment-17512210 ] 

Yuan Zhu commented on FLINK-25409:
----------------------------------

Hi, [~martijnvisser], [~jingzhang], [~wenlong.lwl].

I have proposed a discussion in dev mail, but there are few replies. Here is the discussion: [https://lists.apache.org/thread/kkoh569f5vrvw7spjtv4kxm98w7835sw|http://example.com/]

How can I proceed this topic? Or I just submit a pr directly?

> Add cache metric to LookupFunction
> ----------------------------------
>
>                 Key: FLINK-25409
>                 URL: https://issues.apache.org/jira/browse/FLINK-25409
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Ecosystem
>            Reporter: Yuan Zhu
>            Priority: Major
>
> Since we encounter performance problem when lookup join in production env frequently, adding metrics to monitor Lookup function cache is very helpful to troubleshoot.



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