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https://issues.apache.org/jira/browse/KAFKA-15020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17783708#comment-17783708
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Kirk True commented on KAFKA-15020:
-----------------------------------
According to [historical test runs over the last 28
days|https://ge.apache.org/scans/tests?search.relativeStartTime=P28D&search.rootProjectNames=kafka&tests.container=integration.kafka.server.FetchFromFollowerIntegrationTest&tests.sortField=FLAKY],
this is affecting both Zookeeper and KRaft. Most of the log examples linked
here include {{{}org.apache.zookeeper.server.ServerCnxnFactory{}}}, but it
doesn't seem specific to Zookeeper.
> integration.kafka.server.FetchFromFollowerIntegrationTest.testRackAwareRangeAssignor
> test is flaky
> --------------------------------------------------------------------------------------------------
>
> Key: KAFKA-15020
> URL: https://issues.apache.org/jira/browse/KAFKA-15020
> Project: Kafka
> Issue Type: Test
> Components: unit tests
> Reporter: Atul Sharma
> Priority: Major
> Labels: flaky-test
>
> Sometimes the test fails with the following log:
> {code:java}
> Gradle Test Run :core:integrationTest > Gradle Test Executor 175 >
> FetchFromFollowerIntegrationTest > testRackAwareRangeAssignor() FAILED
> org.opentest4j.AssertionFailedError: Consumed 0 records before timeout
> instead of the expected 2 records
> at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:38)
> at org.junit.jupiter.api.Assertions.fail(Assertions.java:135)
> at kafka.utils.TestUtils$.pollUntilAtLeastNumRecords(TestUtils.scala:1087)
> at
> integration.kafka.server.FetchFromFollowerIntegrationTest.$anonfun$testRackAwareRangeAssignor$11(FetchFromFollowerIntegrationTest.scala:216)
> at
> integration.kafka.server.FetchFromFollowerIntegrationTest.$anonfun$testRackAwareRangeAssignor$11$adapted(FetchFromFollowerIntegrationTest.scala:215)
> at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
> at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
> at
> integration.kafka.server.FetchFromFollowerIntegrationTest.verifyAssignments$1(FetchFromFollowerIntegrationTest.scala:215)
> at
> integration.kafka.server.FetchFromFollowerIntegrationTest.testRackAwareRangeAssignor(FetchFromFollowerIntegrationTest.scala:244)
> {code}
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