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https://issues.apache.org/jira/browse/KAFKA-12638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Chen reassigned KAFKA-12638:
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Assignee: Ben Chen
> Remove default implementation of ConsumerRebalanceListener#onPartitionsLost
> ---------------------------------------------------------------------------
>
> Key: KAFKA-12638
> URL: https://issues.apache.org/jira/browse/KAFKA-12638
> Project: Kafka
> Issue Type: Improvement
> Components: consumer
> Reporter: A. Sophie Blee-Goldman
> Assignee: Ben Chen
> Priority: Major
>
> When we added the #onPartitionsLost callback to the ConsumerRebalanceListener
> in KIP-429, we gave it a default implementation that just invoked the
> existing #onPartitionsRevoked method for backwards compatibility. This is
> somewhat inconvenient, since we generally want to invoke #onPartitionsLost in
> order to skip the committing of offsets on revoked partitions, which is
> exactly what #onPartitionsRevoked does.
> I don't think we can just remove it in 3.0 since we haven't indicated that we
> "deprecated" the default implementation or logged a warning that we intend to
> remove the default in a future release (as we did for the
> RocksDBConfigSetter#close method in Streams, for example). We should try to
> add such a warning now, so we can remove it in a future release.
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