[HDFS-15762] TestMultipleNNPortQOP#testMultipleNNPortOverwriteDownStream fails intermittently

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.1, 3.4.0, 3.2.3
• Fix Version/s: 3.3.1, 3.4.0, 3.2.3
• Component/s: hdfs, test
• Labels: flaky-test pull-request-available
• Target Version/s: 3.3.1, 3.4.0, 3.2.3
• Hadoop Flags: Reviewed
• Assignee: Toshihiko Uchida
• Reporter: Toshihiko Uchida
• Created: 05/Jan/21 15:02
• Updated: 12/Feb/24 01:04
• Resolved: 13/Jan/21 02:57

Description

This unit test failed in https://github.com/apache/hadoop/pull/2585 due to an AssertionError.

java.lang.AssertionError: expected:<auth> but was:<null>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:834)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:144)
	at org.apache.hadoop.hdfs.TestMultipleNNPortQOP.testMultipleNNPortOverwriteDownStream(TestMultipleNNPortQOP.java:267)
	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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
	at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)

The failure occurred at the following assertion.

      doTest(fsPrivacy, PATH1);
      for (int i = 0; i < 2; i++) {
        DataNode dn = dataNodes.get(i);
        SaslDataTransferClient saslClient = dn.getSaslClient();
        String qop = null;
        // It may take some time for the qop to populate
        // to all DNs, check in a loop.
        for (int trial = 0; trial < 10; trial++) {
          qop = saslClient.getTargetQOP();
          if (qop != null) {
            break;
          }
          Thread.sleep(100);
        }
        assertEquals("auth", qop);
      }

Issue Links

• links to: GitHub Pull Request #2598