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https://issues.apache.org/jira/browse/KAFKA-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15995872#comment-15995872
]
Guozhang Wang commented on KAFKA-4801:
--------------------------------------
[~hachikuji] Saw this happen again but with a different stack trace:
{code}
kafka.api.ConsumerBounceTest > testConsumptionWithBrokerFailures FAILED
java.lang.AssertionError: expected:<Set(topic-0)> but was:<Set()>
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.failNotEquals(Assert.java:834)
at org.junit.Assert.assertEquals(Assert.java:118)
at org.junit.Assert.assertEquals(Assert.java:144)
at
kafka.api.ConsumerBounceTest.consumeWithBrokerFailures(ConsumerBounceTest.scala:105)
at
kafka.api.ConsumerBounceTest.testConsumptionWithBrokerFailures(ConsumerBounceTest.scala:84)
{code}
> Transient test failure (part 2):
> ConsumerBounceTest.testConsumptionWithBrokerFailures
> -------------------------------------------------------------------------------------
>
> Key: KAFKA-4801
> URL: https://issues.apache.org/jira/browse/KAFKA-4801
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Armin Braun
> Assignee: Jason Gustafson
> Priority: Minor
> Labels: transient-system-test-failure
>
> There is still some (but very little ... when reproducing this you need more
> than 100 runs in half the cases statistically) instability left in the test
> {code}
> ConsumerBounceTest.testConsumptionWithBrokerFailures
> {code}
> Resulting in this exception being thrown at a relatively low rate (I'd say
> def less than 0.5% of all runs on my machine).
> {code}
> kafka.api.ConsumerBounceTest > testConsumptionWithBrokerFailures FAILED
> java.lang.IllegalArgumentException: You can only check the position for
> partitions assigned to this consumer.
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.position(KafkaConsumer.java:1271)
> at
> kafka.api.ConsumerBounceTest.consumeWithBrokerFailures(ConsumerBounceTest.scala:96)
> at
> kafka.api.ConsumerBounceTest.testConsumptionWithBrokerFailures(ConsumerBounceTest.scala:69)
> {code}
> this was also reported in a comment to the original KAFKA-4198
> https://issues.apache.org/jira/browse/KAFKA-4198?focusedCommentId=15765468&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15765468
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