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https://issues.apache.org/jira/browse/KAFKA-5604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058327#comment-17058327
]
Xiang Zhang commented on KAFKA-5604:
------------------------------------
[~mjsax] I notice that beginTransaction(), sendOffsesToTransaction(),
commitTransaction(), abortTransaction() call maybeFailWithError() before
anything. myabeFailWithError() is defined as :
{code:java}
private void maybeFailWithError() {
if (hasError()) {
// for ProducerFencedException, do not wrap it as a KafkaException
// but create a new instance without the call trace since it was not
thrown because of the current call
if (lastError instanceof ProducerFencedException) {
throw new ProducerFencedException("The producer has been rejected
from the broker because " + "it tried to use an old epoch with the
transactionalId");
} else {
throw new KafkaException("Cannot execute transactional method
because we are in an error state", lastError);
}
}
}
{code}
[https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java#L1084]
If lastError indeed tracks last error, it seems it will throw
ProducerFencedException for the second time as expected.
> All producer methods should raise `ProducerFencedException` after the first
> time.
> ---------------------------------------------------------------------------------
>
> Key: KAFKA-5604
> URL: https://issues.apache.org/jira/browse/KAFKA-5604
> Project: Kafka
> Issue Type: Bug
> Reporter: Apurva Mehta
> Assignee: Apurva Mehta
> Priority: Major
>
> Currently, when a `ProducerFencedException` is raised from a transactional
> producer, the expectation is that the application should call `close`
> immediately. However, if the application calls other producer methods, they
> would get a `KafkaException`. This is a bit confusing, and results in tickets
> like : https://issues.apache.org/jira/browse/KAFKA-5603.
> We should update the producer so that calls to any method other than `close`
> should raise a `ProducerFencedException` after the first time it is raised.
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