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Posted to issues@flink.apache.org by "Martijn Visser (Jira)" <ji...@apache.org> on 2022/04/05 07:40:00 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=17517280#comment-17517280 ] 

Martijn Visser commented on FLINK-25409:
----------------------------------------

[~straw] Sorry for the late reply. I would reply to the latest email on the Dev mailing list, where you summarize the results of the discussion and mention that if there are no other remarks in a couple of days, you will open a PR to implement it. 

> 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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