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https://issues.apache.org/jira/browse/KAFKA-15665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18022860#comment-18022860
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Alyssa Huang commented on KAFKA-15665:
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Notes:
- the current solution now is a bit too strict because it checks that all
replicas in the target replica set are in ISR - if we had a single replica in
the replica set of a partition that was unhealthy (and not the one being added
in a reassignment), any reassignment involving that partition would be blocked.
We should only block if the reassignment would have resulted in under min-isr.
- we may need to announce the change in release notes
> Enforce ISR to have all target replicas when complete partition reassignment
> ----------------------------------------------------------------------------
>
> Key: KAFKA-15665
> URL: https://issues.apache.org/jira/browse/KAFKA-15665
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Calvin Liu
> Assignee: Calvin Liu
> Priority: Major
>
> Current partition reassignment can be completed when the new ISR is under min
> ISR. We should fix this behavior.
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