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https://issues.apache.org/jira/browse/KAFKA-16986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17855973#comment-17855973
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Justine Olshan commented on KAFKA-16986:
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To be clear, this will be a thing that pollutes the log from time to time on
versions older than 3.5.
If it is happening not just on upgrade on version 3.5 or higher, please confirm
and I will look further.
> After upgrading to Kafka 3.4.1, the producer constantly produces logs related
> to topicId changes
> ------------------------------------------------------------------------------------------------
>
> Key: KAFKA-16986
> URL: https://issues.apache.org/jira/browse/KAFKA-16986
> Project: Kafka
> Issue Type: Bug
> Components: clients, producer
> Affects Versions: 3.0.1, 3.6.1
> Reporter: Vinicius Vieira dos Santos
> Priority: Minor
> Attachments: image.png
>
>
> When updating the Kafka broker from version 2.7.0 to 3.4.1, we noticed that
> the applications began to log the message "{*}Resetting the last seen epoch
> of partition PAYMENTS-0 to 0 since the associated topicId changed from null
> to szRLmiAiTs8Y0nI8b3Wz1Q{*}" in a very constant, from what I understand this
> behavior is not expected because the topic was not deleted and recreated so
> it should simply use the cached data and not go through this client log line.
> We have some applications with around 15 topics and 40 partitions which means
> around 600 log lines when metadata updates occur
> The main thing for me is to know if this could indicate a problem or if I can
> simply change the log level of the org.apache.kafka.clients.Metadata class to
> warn without worries
>
> There are other reports of the same behavior like this:
> https://stackoverflow.com/questions/74652231/apache-kafka-resetting-the-last-seen-epoch-of-partition-why
>
> *Some log occurrences over an interval of about 7 hours, each block refers to
> an instance of the application in kubernetes*
>
> !image.png!
> *My scenario:*
> *Application:*
> - Java: 21
> - Client: 3.6.1, also tested on 3.0.1 and has the same behavior
> *Broker:*
> - Cluster running on Kubernetes with the bitnami/kafka:3.4.1-debian-11-r52
> image
>
> If you need any more details, please let me know.
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