sarama consumer client can not return to leader when the client fetch from follower which is outed of isr

[mtj075]

now, there maybe have a problem, when the sarama client configured the rackid, it will fetch message from the matched follower replica. When the consumer After the replica subscribed by the end falls out of the ISR, the sarama client can not notice. Once the replica falls out of the ISR and does not return to the ISR for a long time, resulting in a backlog of client lag.

I think we can remove followers who have fallen out of ISR from the subscription by listening to ISR on the client side.When the dropped replica returns to the ISR, the leader will return to the corresponding follower for the client to pull data.

What needs to be guaranteed is that the client version > 3.2.3. This version guarantees that the replica returned by the leader is in the isr. https://github.com/apache/kafka/pull/12877/files

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[github-actions]

Thank you for taking the time to raise this issue. However, it has not had any activity on it in the past 90 days and will be closed in 30 days if no updates occur.
Please check if the main branch has already resolved the issue since it was raised. If you believe the issue is still valid and you would like input from the maintainers then please comment to ask for it to be reviewed.

[mtj075]

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