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https://issues.apache.org/jira/browse/KAFKA-8463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16853828#comment-16853828
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ASF GitHub Bot commented on KAFKA-8463:
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kkonstantine commented on pull request #6859: KAFKA-8463: Fix redundant
reassignment of tasks when leader worker leaves
URL: https://github.com/apache/kafka/pull/6859
Current assignments need to be considered along with previous reassignments
when leader worker leaves the group. When the leader is present, current
assignments are a subset of previous assignments.
Adjusted unit tests that now fail without the fix
Fixes system test on consecutive worker restarts
### 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 redundant reassignment of tasks when leader worker leaves
> -------------------------------------------------------------
>
> Key: KAFKA-8463
> URL: https://issues.apache.org/jira/browse/KAFKA-8463
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 2.3.0
> Reporter: Konstantine Karantasis
> Assignee: Konstantine Karantasis
> Priority: Blocker
> Fix For: 2.3.0
>
>
> There's a bug in the computation of new assignment for connectors and tasks
> in \{{IncrementalCooperativeAssignor}} that may lead to duplicate assignment.
> The existing assignments should always be considered because if the leader
> worker bounces there's no history of previous assignments.
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