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https://issues.apache.org/jira/browse/KAFKA-9509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17143314#comment-17143314
]
Boyang Chen commented on KAFKA-9509:
------------------------------------
Failed again:
h3. Stacktrace
java.lang.RuntimeException: Could not find enough records. found 0, expected
100 at
org.apache.kafka.connect.util.clusters.EmbeddedKafkaCluster.consume(EmbeddedKafkaCluster.java:435)
at
org.apache.kafka.connect.mirror.MirrorConnectorsIntegrationTest.testReplication(MirrorConnectorsIntegrationTest.java:222)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566) at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
[https://builds.apache.org/job/kafka-pr-jdk11-scala2.13/7083/testReport/junit/org.apache.kafka.connect.mirror/MirrorConnectorsIntegrationTest/testReplication/]
> Fix flaky test MirrorConnectorsIntegrationTest.testReplication
> --------------------------------------------------------------
>
> Key: KAFKA-9509
> URL: https://issues.apache.org/jira/browse/KAFKA-9509
> Project: Kafka
> Issue Type: Test
> Components: mirrormaker
> Affects Versions: 2.4.0
> Reporter: Sanjana Kaundinya
> Assignee: Luke Chen
> Priority: Major
> Fix For: 2.5.0
>
>
> The test
> org.apache.kafka.connect.mirror.MirrorConnectorsIntegrationTest.testReplication
> is a flaky test for MirrorMaker 2.0. Its flakiness lies in the timing of
> when the connectors and tasks are started up. The fix for this would make it
> such that when the connectors are started up, to wait until the REST endpoint
> returns a positive number of tasks to be confident that we can start testing.
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