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https://issues.apache.org/jira/browse/HDFS-15308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253061#comment-17253061
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Íñigo Goiri commented on HDFS-15308:
------------------------------------
Let's go ahead with this then.
> TestReconstructStripedFile#testNNSendsErasureCodingTasks fails intermittently
> -----------------------------------------------------------------------------
>
> 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: Major
> Labels: flaky-test
> Attachments: HDFS-15308.001.patch, HDFS-15308.002.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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