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https://issues.apache.org/jira/browse/KAFKA-14095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mickael Maison resolved KAFKA-14095.
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Fix Version/s: 3.4.0
Resolution: Fixed
> Improve handling of sync offset failures in MirrorMaker
> -------------------------------------------------------
>
> Key: KAFKA-14095
> URL: https://issues.apache.org/jira/browse/KAFKA-14095
> Project: Kafka
> Issue Type: Improvement
> Components: mirrormaker
> Reporter: Mickael Maison
> Assignee: Mickael Maison
> Priority: Major
> Fix For: 3.4.0
>
>
> MirrorMaker can automatically sync offsets when sync.group.offsets.enabled is
> set to true. However that only works if the consumer groups are not used in
> the target cluster otherwise committing offsets fails with UNKNOWN_MEMBER_ID.
> Currently we treat this case as an error in the admin client so it emits an
> ERROR level log line. This is misleading as it's not an unexpected error and
> we should treat it the same way as other group level error codes.
> In addition we should check the result of the alterConsumerGroupOffsets call
> in MirrorMaker and provide an helpful message in case of UNKNOWN_MEMBER_ID
> errors.
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