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https://issues.apache.org/jira/browse/KAFKA-13214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Gustafson resolved KAFKA-13214.
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Fix Version/s: 2.8.1
2.7.2
3.0.0
Resolution: Fixed
> Consumer should not reset group state after disconnect
> ------------------------------------------------------
>
> Key: KAFKA-13214
> URL: https://issues.apache.org/jira/browse/KAFKA-13214
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 2.7.0, 2.8.0
> Reporter: Jason Gustafson
> Assignee: Jason Gustafson
> Priority: Critical
> Fix For: 3.0.0, 2.7.2, 2.8.1
>
>
> When the consumer disconnects from the coordinator while a rebalance is in
> progress, we currently reset the memberId and generation. The coordinator
> then must await the session timeout in order to expire the old memberId. This
> was apparently a regression from
> https://github.com/apache/kafka/commit/7e7bb184d2abe34280a7f0eb0f0d9fc0e32389f2#diff-15efe9b844f78b686393b6c2e2ad61306c3473225742caed05c7edab9a138832R478.
> It would be better to keep the memberId/generation.
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