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https://issues.apache.org/jira/browse/HDFS-14054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16686550#comment-16686550
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Zsolt Venczel commented on HDFS-14054:
--------------------------------------
The failure happened due to FSEditLog.endCurrentLogSegment not being mocked
early enough that had caused the edit log finalization to fail.
In very rare cases I've seen NPE in line 573. that is handled as well.
Also in very rare cases the timeout for line 575. was not enough.
> TestLeaseRecovery2: testHardLeaseRecoveryAfterNameNodeRestart2 and
> testHardLeaseRecoveryWithRenameAfterNameNodeRestart are flaky
> --------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-14054
> URL: https://issues.apache.org/jira/browse/HDFS-14054
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0, 3.0.3
> Reporter: Zsolt Venczel
> Assignee: Zsolt Venczel
> Priority: Major
> Labels: flaky-test
> Attachments: HDFS-14054.01.patch
>
>
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support
> was removed in 8.0
> Running org.apache.hadoop.hdfs.TestLeaseRecovery2
> Tests run: 7, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 68.971 sec
> <<< FAILURE! - in org.apache.hadoop.hdfs.TestLeaseRecovery2
> testHardLeaseRecoveryAfterNameNodeRestart2(org.apache.hadoop.hdfs.TestLeaseRecovery2)
> Time elapsed: 4.375 sec <<< FAILURE!
> java.lang.AssertionError: lease holder should now be the NN
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at
> org.apache.hadoop.hdfs.TestLeaseRecovery2.checkLease(TestLeaseRecovery2.java:568)
> at
> org.apache.hadoop.hdfs.TestLeaseRecovery2.hardLeaseRecoveryRestartHelper(TestLeaseRecovery2.java:520)
> at
> org.apache.hadoop.hdfs.TestLeaseRecovery2.testHardLeaseRecoveryAfterNameNodeRestart2(TestLeaseRecovery2.java:437)
> testHardLeaseRecoveryWithRenameAfterNameNodeRestart(org.apache.hadoop.hdfs.TestLeaseRecovery2)
> Time elapsed: 4.339 sec <<< FAILURE!
> java.lang.AssertionError: lease holder should now be the NN
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at
> org.apache.hadoop.hdfs.TestLeaseRecovery2.checkLease(TestLeaseRecovery2.java:568)
> at
> org.apache.hadoop.hdfs.TestLeaseRecovery2.hardLeaseRecoveryRestartHelper(TestLeaseRecovery2.java:520)
> at
> org.apache.hadoop.hdfs.TestLeaseRecovery2.testHardLeaseRecoveryWithRenameAfterNameNodeRestart(TestLeaseRecovery2.java:443)
> Results :
> Failed tests:
>
> TestLeaseRecovery2.testHardLeaseRecoveryAfterNameNodeRestart2:437->hardLeaseRecoveryRestartHelper:520->checkLease:568
> lease holder should now be the NN
>
> TestLeaseRecovery2.testHardLeaseRecoveryWithRenameAfterNameNodeRestart:443->hardLeaseRecoveryRestartHelper:520->checkLease:568
> lease holder should now be the NN
> Tests run: 7, Failures: 2, Errors: 0, Skipped: 0
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