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Jing Zhang commented on FLINK-25409: ------------------------------------ [~straw]Thanks for reporting this issue. Could you list the look up table source which use cache, and only add cache metrics in those connectors? > 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. -- This message was sent by Atlassian Jira (v8.20.1#820001)