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Posted to hdfs-issues@hadoop.apache.org by "Akira Ajisaka (Jira)" <ji...@apache.org> on 2020/10/23 08:31:00 UTC

[jira] [Assigned] (HDFS-15308) TestReconstructStripedFile.testNNSendsErasureCodingTasks is flaky

     [ https://issues.apache.org/jira/browse/HDFS-15308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Akira Ajisaka reassigned HDFS-15308:
------------------------------------

    Assignee: Hemanth Boyina

> TestReconstructStripedFile.testNNSendsErasureCodingTasks is flaky
> -----------------------------------------------------------------
>
>                 Key: HDFS-15308
>                 URL: https://issues.apache.org/jira/browse/HDFS-15308
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: erasure-coding
>    Affects Versions: 3.3.0
>            Reporter: Toshihiko Uchida
>            Assignee: Hemanth Boyina
>            Priority: Minor
>              Labels: flaky-test
>         Attachments: HDFS-15308.001.patch
>
>
> In HDFS-14353, TestReconstructStripedFile.testNNSendsErasureCodingTasks failed once due to pending reconstruction timeout as follows.
> {code}
> java.lang.AssertionError: Found 4 timeout pending reconstruction tasks
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.assertTrue(Assert.java:41)
> 	at org.apache.hadoop.hdfs.TestReconstructStripedFile.testNNSendsErasureCodingTasks(TestReconstructStripedFile.java:502)
> 	at org.apache.hadoop.hdfs.TestReconstructStripedFile.testNNSendsErasureCodingTasks(TestReconstructStripedFile.java:458)
> 	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 error occurred on the following assertion.
> {code}
> // Make sure that all pending reconstruction tasks can be processed.
> while (ns.getPendingReconstructionBlocks() > 0) {
>   long timeoutPending = ns.getNumTimedOutPendingReconstructions();
>   assertTrue(String.format("Found %d timeout pending reconstruction tasks",
>       timeoutPending), timeoutPending == 0);
>   Thread.sleep(1000);
> }
> {code}
> The failure could not be reproduced in the reporter's docker environment (start-build-environment.sh).



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