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https://issues.apache.org/jira/browse/KAFKA-8449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16852729#comment-16852729
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ASF GitHub Bot commented on KAFKA-8449:
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kkonstantine commented on pull request #6850: KAFKA-8449: Restart tasks on
reconfiguration under incremental cooperative rebalancing
URL: https://github.com/apache/kafka/pull/6850
With incremental cooperative rebalancing tasks are not restarted unless they
are reassigned to different worker. Therefore, to load config updates due to
connector reconfiguration the currently running tasks that get new configs need
to be recorded and considered for restart when connectors and tasks are started
after a rebalance.
### 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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> Restart task on reconfiguration under incremental cooperative rebalancing
> -------------------------------------------------------------------------
>
> Key: KAFKA-8449
> URL: https://issues.apache.org/jira/browse/KAFKA-8449
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 2.3.0
> Reporter: Konstantine Karantasis
> Assignee: Konstantine Karantasis
> Priority: Blocker
> Fix For: 2.3.0
>
>
> Tasks that are already running and are not redistributed are not currently
> restarted under incremental cooperative rebalancing when their configuration
> changes. With eager rebalancing the restart was triggered and therefore
> implied by rebalancing itself. But now existing tasks will not read the new
> configuration unless restarted via the REST api.
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