Jason Gustafson created KAFKA-13214:
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Summary: 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: 2.8.0, 2.7.0
Reporter: Jason Gustafson
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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