[GitHub] [kafka] mingaliu edited a comment on pull request #8982: Adding metrics to measure the idempotent producers

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mingaliu edited a comment on pull request #8982:
URL: https://github.com/apache/kafka/pull/8982#issuecomment-653938131


   We found it is very useful to track the number of idempotent producers that broker is tracking.
   In our production environment, we have many idempotent producers to a cluster and sometimes that number increased to very high number which requires some attention to mitigate.
   This is especially true for client (< 2.4) where the client retry might generate too many different idempotent producers which can trigger broker GC.


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