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https://issues.apache.org/jira/browse/HDFS-15864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Akira Ajisaka resolved HDFS-15864.
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Resolution: Duplicate
Closing as duplicate of HDFS-16213. Thank you [~touchida] for your report.
> TestFsDatasetImpl#testDnRestartWithHardLink fails intermittently
> ----------------------------------------------------------------
>
> Key: HDFS-15864
> URL: https://issues.apache.org/jira/browse/HDFS-15864
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Toshihiko Uchida
> Priority: Minor
> Labels: flaky-test
>
> This unit test failed in https://github.com/apache/hadoop/pull/2726 due to an
> AssertionError.
> {code}
> [ERROR]
> testDnRestartWithHardLink(org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl)
> Time elapsed: 1.452 s <<< FAILURE!
> java.lang.AssertionError
> at org.junit.Assert.fail(Assert.java:86)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at org.junit.Assert.assertTrue(Assert.java:52)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl.testDnRestartWithHardLink(TestFsDatasetImpl.java:1377)
> 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$1.runReflectiveCall(FrameworkMethod.java:50)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> The failure occurred at the following first assertion.
> {code}
> cluster.restartDataNode(0);
> cluster.waitDatanodeFullyStarted(cluster.getDataNodes().get(0), 60000);
> cluster.triggerBlockReports();
> assertTrue(Files.exists(Paths.get(newReplicaInfo.getBlockURI())));
> assertTrue(Files.exists(Paths.get(oldReplicaInfo.getBlockURI())));
> {code}
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