[GitHub] [accumulo] DomGarguilo edited a comment on issue #1791: Flaky test: SuspendedTabletsIT

[GitBox <gi...@apache.org>]

DomGarguilo edited a comment on issue #1791:
URL: https://github.com/apache/accumulo/issues/1791#issuecomment-760404978


   This test fails for me more often then it passes. I got the same error as you for shutDownAndResumeTserver once but most of the time this test reaches the 5 minute timeout for me. It did pass once in which case the crashAndResumeTserver test failed with similar error: 
   ```java
   java.lang.AssertionError: 
   Expected :[1;11;10]
   Actual   :[1;18;17, 1;11;10, 1;19;18, 1;12;11, 1;13;12, 1;14;13, 1;15;14, 1;16;15, 1;17;16, 1;8;7]
   
   	at org.junit.Assert.fail(Assert.java:89)
   	at org.junit.Assert.failNotEquals(Assert.java:835)
   	at org.junit.Assert.assertEquals(Assert.java:120)
   	at org.junit.Assert.assertEquals(Assert.java:146)
   	at org.apache.accumulo.test.master.SuspendedTabletsIT.suspensionTestBody(SuspendedTabletsIT.java:225)
   	at org.apache.accumulo.test.master.SuspendedTabletsIT.crashAndResumeTserver(SuspendedTabletsIT.java:100)
   	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$1.runReflectiveCall(FrameworkMethod.java:59)
   	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
   	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
   	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
   	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
   	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
   	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:288)
   	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:282)
   	at java.base/java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:264)
   	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java)
   	at java.base/java.lang.Thread.run(Thread.java:834)
   ```
   It looks like in both cases an assertEquals() fails comparing a set of dead tablets and another set of tablets. In both cases either the expected value is a subset of the actual value or vise-versa. I'm not too sure what this means yet but im looking into it.
   


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