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https://issues.apache.org/jira/browse/KAFKA-6638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dong Lin updated KAFKA-6638:
Description: During partition reassignment, controller may remove a replica
from the replica set while still keeping the replica in the isr set. One
solution to fix this issue is to let the controller remove replica from isr set
as well. This requires more change in the code because controller needs to
update the zookeeper node to change the isr properly. Another solution, which
keeps controller simple, is to let leader node remove unassigned replica from
the isr set.
> Leader should remove unassigned replica from ISR
>
>
> Key: KAFKA-6638
> URL: https://issues.apache.org/jira/browse/KAFKA-6638
> Project: Kafka
> Issue Type: Improvement
>Reporter: Dong Lin
>Assignee: Dong Lin
>Priority: Major
>
> During partition reassignment, controller may remove a replica from the
> replica set while still keeping the replica in the isr set. One solution to
> fix this issue is to let the controller remove replica from isr set as well.
> This requires more change in the code because controller needs to update the
> zookeeper node to change the isr properly. Another solution, which keeps
> controller simple, is to let leader node remove unassigned replica from the
> isr set.
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