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https://issues.apache.org/jira/browse/KAFKA-15843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk True updated KAFKA-15843:
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Fix Version/s: 3.9.0
> Review consumer onPartitionsAssigned called with empty partitions
> -----------------------------------------------------------------
>
> Key: KAFKA-15843
> URL: https://issues.apache.org/jira/browse/KAFKA-15843
> Project: Kafka
> Issue Type: Sub-task
> Components: clients, consumer
> Reporter: Lianet Magrans
> Assignee: Lianet Magrans
> Priority: Minor
> Labels: callback, kip-848-client-support, reconciliation
> Fix For: 4.0.0, 3.9.0
>
>
> Legacy coordinator triggers onPartitionsAssigned with empty assignment (which
> is not the case when triggering onPartitionsRevoked or Lost). This is the
> behaviour of the legacy coordinator, and the new consumer implementation
> maintains the same principle. We should review this to fully understand if it
> is really needed to call onPartitionsAssigned with empty assignment (or if it
> should behave consistently with the onRevoke/Lost).
> Note that the consumer integration tests rely on this call to
> onPartitionsAssigned to #awaitRebalance (AbstractConsumerTest.scala)
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