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https://issues.apache.org/jira/browse/KAFKA-6256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16305883#comment-16305883
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Matthias J. Sax commented on KAFKA-6256:
----------------------------------------
Had a look into the test. You are right. If we flush in between the test fails.
Note, that this is related to {{commit.interval.ms}} because this is the only
parameter that could trigger a flush in this test (the cache itself is large
enough to hold all data).
> Flaky Unit test:
> KStreamKTableJoinIntegrationTest.shouldCountClicksPerRegionWithNonZeroByteCache
> ------------------------------------------------------------------------------------------------
>
> Key: KAFKA-6256
> URL: https://issues.apache.org/jira/browse/KAFKA-6256
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Matthias J. Sax
>
> {noformat}
> Expected: <[KeyValue(americas, 101), KeyValue(europe, 109), KeyValue(asia,
> 124)]>
> but: was <[KeyValue(europe, 13), KeyValue(asia, 25), KeyValue(americas,
> 23)]>
> at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
> at org.junit.Assert.assertThat(Assert.java:956)
> at org.junit.Assert.assertThat(Assert.java:923)
> at
> org.apache.kafka.streams.integration.KStreamKTableJoinIntegrationTest.countClicksPerRegion(KStreamKTableJoinIntegrationTest.java:301)
> at
> org.apache.kafka.streams.integration.KStreamKTableJoinIntegrationTest.shouldCountClicksPerRegionWithNonZeroByteCache(KStreamKTableJoinIntegrationTest.java:144)
> {noformat}
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