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https://issues.apache.org/jira/browse/KAFKA-16566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lianet Magrans updated KAFKA-16566:
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Labels: kip-848-client-support system-tests (was: kip-848-client-support)
> Update consumer static membership fencing system test to support new protocol
> -----------------------------------------------------------------------------
>
> Key: KAFKA-16566
> URL: https://issues.apache.org/jira/browse/KAFKA-16566
> Project: Kafka
> Issue Type: Bug
> Components: clients, consumer, system tests
> Affects Versions: 3.7.0
> Reporter: Lianet Magrans
> Assignee: Lianet Magrans
> Priority: Major
> Labels: kip-848-client-support, system-tests
> Fix For: 3.8.0
>
>
> consumer_test.py contains OffsetValidationTest.test_fencing_static_consumer
> that verifies the sequence in which static members join a group when using
> conflicting instance id. This behaviour is different in the classic and
> consumer protocol, so the tests should be updated to set the right
> expectations when running with the new consumer protocol. Note that what the
> tests covers (params, setup), apply to both protocols. It is the expected
> results that are not the same.
> When conflicts between static members joining a group:
> Classic protocol: all members join the group with the same group instance id,
> and then the first one will eventually receive a HB error with
> FencedInstanceIdException
> Consumer protocol: new member with an instance Id already in use is not able
> to join, receiving an UnreleasedInstanceIdException in the response to the HB
> to join the group.
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