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https://issues.apache.org/jira/browse/KAFKA-18377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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José Armando García Sancio updated KAFKA-18377:
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Component/s: kraft
> Investigate transition out of resigned state
> --------------------------------------------
>
> Key: KAFKA-18377
> URL: https://issues.apache.org/jira/browse/KAFKA-18377
> Project: Kafka
> Issue Type: Improvement
> Components: kraft
> Reporter: Alyssa Huang
> Assignee: Alyssa Huang
> Priority: Major
>
> Previously, this ticket was for investigating if we can short circuit to
> unattached on receiving all endquorum acks.
> Resigned state keeps track of `unackedVoters` and on pollResigned only sends
> endQuorum requests to those voters. We thought it might be useful to short
> circuit this to allow the replica to discover any new leader more quickly
> (say in the case that the node was removed from quorum, the new leader would
> not be sending beginquorum requests to this node). However, there is a flaw
> in that logic - resigned must increase its epoch when transitioning, so any
> replica that communicates with this replica would then have to bump its epoch.
>
> We want to achieve a balance of allowing other replicas to make progress in
> their elections and potentially become leader, while not having resigned
> replicas sit doing nothing for too long.
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