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Posted to jira@kafka.apache.org by "Matthias J. Sax (Jira)" <ji...@apache.org> on 2020/05/27 21:12:00 UTC
[jira] [Reopened] (KAFKA-8011) Flaky Test
RegexSourceIntegrationTest#testRegexMatchesTopicsAWhenCreated
[ https://issues.apache.org/jira/browse/KAFKA-8011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias J. Sax reopened KAFKA-8011:
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Failed again: [https://builds.apache.org/job/kafka-pr-jdk8-scala2.12/2533/testReport/junit/org.apache.kafka.streams.integration/RegexSourceIntegrationTest/testRegexMatchesTopicsAWhenCreated/]
{quote}java.lang.RuntimeException: java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.TopicExistsException: Topic 'TEST-TOPIC-1' already exists. at org.apache.kafka.streams.integration.utils.KafkaEmbedded.createTopic(KafkaEmbedded.java:187) at org.apache.kafka.streams.integration.utils.EmbeddedKafkaCluster.createTopic(EmbeddedKafkaCluster.java:218) at org.apache.kafka.streams.integration.utils.EmbeddedKafkaCluster.createTopic(EmbeddedKafkaCluster.java:192) at org.apache.kafka.streams.integration.RegexSourceIntegrationTest.testRegexMatchesTopicsAWhenCreated(RegexSourceIntegrationTest.java:154){quote}
> Flaky Test RegexSourceIntegrationTest#testRegexMatchesTopicsAWhenCreated
> ------------------------------------------------------------------------
>
> Key: KAFKA-8011
> URL: https://issues.apache.org/jira/browse/KAFKA-8011
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Bill Bejeck
> Assignee: Bill Bejeck
> Priority: Critical
> Labels: flaky-test, newbie
> Fix For: 1.0.3, 1.1.2, 2.2.0, 2.0.2, 2.1.2
>
> Attachments: streams_1_0_test_results.png, streams_1_1_tests.png
>
>
> The RegexSourceIntegrationTest#testRegexMatchesTopicsAWhenCreated
> and RegexSourceIntegrationTest#testRegexMatchesTopicsAWhenDeleted tests use an ArrayList to assert the topics assigned to the Streams application.
> The ConsumerRebalanceListener used in the test operates on this list as does the TestUtils.waitForCondition() to verify the expected topic assignments.
> Using the same list in both places can cause a ConcurrentModficationException if the rebalance listener modifies the assignment at the same time TestUtils.waitForCondition() is using the list to verify the expected topics.
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