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Posted to jira@kafka.apache.org by "Guozhang Wang (Jira)" <ji...@apache.org> on 2020/04/28 20:43:00 UTC

[jira] [Created] (KAFKA-9928) Flaky GlobalKTableEOSIntegrationTest#shouldKStreamGlobalKTableLeftJoin[exactly_once_beta]

Guozhang Wang created KAFKA-9928:
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             Summary: Flaky GlobalKTableEOSIntegrationTest#shouldKStreamGlobalKTableLeftJoin[exactly_once_beta]
                 Key: KAFKA-9928
                 URL: https://issues.apache.org/jira/browse/KAFKA-9928
             Project: Kafka
          Issue Type: Bug
            Reporter: Guozhang Wang


{code}
Stacktrace
java.lang.AssertionError: Condition not met within timeout 30000. waiting for final values
	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:26)
	at org.apache.kafka.test.TestUtils.lambda$waitForCondition$5(TestUtils.java:381)
	at org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:429)
	at org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:397)
	at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:380)
	at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:368)
	at org.apache.kafka.streams.integration.GlobalKTableEOSIntegrationTest.shouldKStreamGlobalKTableLeftJoin(GlobalKTableEOSIntegrationTest.java:178)
{code}

I looked at the below examples:

https://builds.apache.org/job/kafka-pr-jdk14-scala2.13/149/testReport/junit/org.apache.kafka.streams.integration/GlobalKTableEOSIntegrationTest/shouldKStreamGlobalKTableLeftJoin_exactly_once_beta_/

https://builds.apache.org/job/kafka-pr-jdk11-scala2.13/6017/testReport/junit/org.apache.kafka.streams.integration/EosIntegrationTest/shouldNotViolateEosIfOneTaskFailsWithState_exactly_once_beta__2/

https://builds.apache.org/job/kafka-pr-jdk11-scala2.13/6017/testReport/junit/org.apache.kafka.streams.integration/GlobalKTableEOSIntegrationTest/shouldKStreamGlobalKTableLeftJoin_exactly_once_beta__2/

And also reproduced the flakiness locally after about 180 runs, and the failed one did not have any obvious different traces compared with the successful ones.



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