[CASSANDRA-16862] Fix flaky test DatabaseDescriptorRefTest

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.11.12, 4.0.2, 4.1-alpha1, 4.1
• Component/s: CI
• Bug Category: Correctness - Test Failure
• Severity: Low
• Complexity: Normal
• Discovered By: User Report
• Platform: All

Source Control Link

https://github.com/apache/cassandra/commit/876f7b05914a68ae314e5e420667272cf4415cf9

Test and Documentation Plan

https://issues.apache.org/jira/browse/CASSANDRA-16862?focusedCommentId=17416550&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17416550

• Assignee: Aleksei Zotov
• Reporter: Ekaterina Dimitrova

Authors

Aleksei Zotov

Reviewers

Ekaterina Dimitrova, Jon Meredith

• Created: 17/Aug/21 22:07
• Updated: 27/May/22 19:25
• Resolved: 20/Sep/21 21:18

Description

While working on another ticket I found out that DatabaseDescriptorRefTest is failing consistently locally for me and one more community member on 3.11, 4.0 and trunk.

 java.lang.AssertionError: thread started in clientInitialization 
Expected :5
Actual   :8
<Click to see difference>


	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:834)
	at org.junit.Assert.assertEquals(Assert.java:645)
	at org.apache.cassandra.config.DatabaseDescriptorRefTest.testDatabaseDescriptorRef(DatabaseDescriptorRefTest.java:285)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)