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https://issues.apache.org/jira/browse/KAFKA-5449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16049800#comment-16049800
]
Apurva Mehta commented on KAFKA-5449:
-------------------------------------
With the latest patch, it appears that the producer which leaves its
transaction open gets a producer fenced exception, while the produce which
calls the commit gets the invalid transition exception:
{noformat}
[2017-06-14 22:06:15,648] ERROR [TransactionalId transactional-producer]
Aborting producer batches due to fatal error
(org.apache.kafka.clients.producer.internals.Sender:384)
org.apache.kafka.common.errors.ProducerFencedException: Producer attempted an
operation with an old epoch. Either there is a newer producer with the same
transactionalId, or the producer's transaction has been expired by the broker
...
[2017-06-14 22:06:34,841] ERROR Uncaught error in kafka producer I/O thread:
(org.apache.kafka.clients.producer.internals.Sender:164)
org.apache.kafka.common.KafkaException: [TransactionalId other] Invalid
transition attempted from state READY to state ABORTABLE_ERROR
at
org.apache.kafka.clients.producer.internals.TransactionManager.transitionTo(TransactionManager.java:477)
at
org.apache.kafka.clients.producer.internals.TransactionManager.transitionToAbortableError(TransactionManager.java:289)
at
org.apache.kafka.clients.producer.internals.Sender.failBatch(Sender.java:604)
at
org.apache.kafka.clients.producer.internals.Sender.sendProducerData(Sender.java:272)
at
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:223)
at
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:162)
{noformat}
Very strange. Unfortunately I changed the wrong log4j.properties, so we didn't
get the trace logging for that failure.
> Flaky test TransactionsTest.testReadCommittedConsumerShouldNotSeeUndecidedData
> ------------------------------------------------------------------------------
>
> Key: KAFKA-5449
> URL: https://issues.apache.org/jira/browse/KAFKA-5449
> Project: Kafka
> Issue Type: Bug
> Components: core, unit tests
> Reporter: Matthias J. Sax
> Assignee: Apurva Mehta
> Labels: exactly-once, test
>
> {noformat}
> java.lang.AssertionError: Consumed 6 records until timeout instead of the
> expected 8 records
> at kafka.utils.TestUtils$.fail(TestUtils.scala:333)
> at kafka.utils.TestUtils$.waitUntilTrue(TestUtils.scala:847)
> at kafka.utils.TestUtils$.consumeRecords(TestUtils.scala:1357)
> at
> kafka.api.TransactionsTest.testReadCommittedConsumerShouldNotSeeUndecidedData(TransactionsTest.scala:143)
> {noformat}
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