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https://issues.apache.org/jira/browse/KAFKA-16298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lianet Magrans updated KAFKA-16298:
-----------------------------------
Description: When user-defined callbacks fail with an exception, the
expectation is that the error should be propagated to the user as a
KafkaExpception and break the poll loop (behaviour in the legacy coordinator).
The new consumer executes callbacks in the application thread, and sends an
event to the background with the callback result and error if any, [passing the
error along with the event
here|https://github.com/apache/kafka/blob/98a658f871fc2c533b16fb5fd567a5ceb1c340b7/clients/src/main/java/org/apache/kafka/clients/consumer/internals/AsyncKafkaConsumer.java#L1882]
to the background thread, but does not seem to propagate the exception to the
user. (was: When user-defined callbacks fail with an exception, the
expectation is that the error should be propagated to the user as a
KafkaExpception and break the poll loop (behaviour in the legacy coordinator).
The new coordinator executes callbacks in the application thread, and sends an
event to the background with the callback result and error if any, [passing the
error along with the event
here|https://github.com/apache/kafka/blob/98a658f871fc2c533b16fb5fd567a5ceb1c340b7/clients/src/main/java/org/apache/kafka/clients/consumer/internals/AsyncKafkaConsumer.java#L1882]
to the background thread, but does not seem to propagate the exception to the
user. )
> Ensure user callbacks exceptions are propagated to the user on consumer poll
> ----------------------------------------------------------------------------
>
> Key: KAFKA-16298
> URL: https://issues.apache.org/jira/browse/KAFKA-16298
> Project: Kafka
> Issue Type: Sub-task
> Components: clients, consumer
> Affects Versions: 3.7.0
> Reporter: Lianet Magrans
> Priority: Blocker
> Labels: kip-848-client-support
>
> When user-defined callbacks fail with an exception, the expectation is that
> the error should be propagated to the user as a KafkaExpception and break the
> poll loop (behaviour in the legacy coordinator). The new consumer executes
> callbacks in the application thread, and sends an event to the background
> with the callback result and error if any, [passing the error along with the
> event
> here|https://github.com/apache/kafka/blob/98a658f871fc2c533b16fb5fd567a5ceb1c340b7/clients/src/main/java/org/apache/kafka/clients/consumer/internals/AsyncKafkaConsumer.java#L1882]
> to the background thread, but does not seem to propagate the exception to
> the user.
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