[jira] [Created] (KAFKA-17967) Dynamic change ProducerStateEntry#NUM_BATCHES_TO_RETAIN based on max.in.flight.requests.per.connection

["PoAn Yang (Jira)" <ji...@apache.org>]

PoAn Yang created KAFKA-17967:
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             Summary: Dynamic change ProducerStateEntry#NUM_BATCHES_TO_RETAIN based on max.in.flight.requests.per.connection
                 Key: KAFKA-17967
                 URL: https://issues.apache.org/jira/browse/KAFKA-17967
             Project: Kafka
          Issue Type: Improvement
            Reporter: PoAn Yang
            Assignee: PoAn Yang


Followup from https://issues.apache.org/jira/browse/KAFKA-17926?focusedCommentId=17895138&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17895138

In server side, by default, we set ProducerStateEntry#NUM_BATCHES_TO_RETAIN as 5 for each producer. In client side, the max in flight requests can be changed by max.in.flight.requests.per.connection. We can enhance the producer request to carry the max.in.flight.requests.per.connection value, allowing the server to initialize or adjust ProducerStateEntry with the correct size.



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