[
https://issues.apache.org/jira/browse/KAFKA-16986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinicius Vieira dos Santos updated KAFKA-16986:
-----------------------------------------------
Description:
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.
was:
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
*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.
> After upgrading to Kafka 3.41, 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
> Affects Versions: 3.0.1
> 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.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
