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https://issues.apache.org/jira/browse/KAFKA-9797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17072656#comment-17072656
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ASF GitHub Bot commented on KAFKA-9797:
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rajinisivaram commented on pull request #8403: KAFKA-9797; Fix
TestSecurityRollingUpgrade.test_enable_separate_interbroker_listener
URL: https://github.com/apache/kafka/pull/8403
In order to perform non-disruptive update of inter-broker listener to a
different security protocol, we need to first ensure that the listener is
enabled on all brokers. Once the listener is available on all brokers,
inter-broker listener can be updated using rolling update.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> Fix flaky system test
> TestSecurityRollingUpgrade.test_enable_separate_interbroker_listener
> ------------------------------------------------------------------------------------------
>
> Key: KAFKA-9797
> URL: https://issues.apache.org/jira/browse/KAFKA-9797
> Project: Kafka
> Issue Type: Bug
> Components: system tests
> Reporter: Rajini Sivaram
> Assignee: Rajini Sivaram
> Priority: Major
> Fix For: 2.6.0
>
>
> TestSecurityRollingUpgrade.test_enable_separate_interbroker_listener is
> supposed to test non-disruptive upgrade of inter-broker listener using
> rolling bounce. But the test updates inter-broker listener without enabling
> the new listener/security_protocol across all brokers, making this a
> disruptive upgrade where brokers are in inconsistent state until all brokers
> have been upgraded. The test must first enable the new listener across all
> brokers and then update the inter-broker listener to the new listener to
> ensure that the cluster is functioning during the upgrade.
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