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https://issues.apache.org/jira/browse/HDFS-14669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898532#comment-16898532
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qiang Liu commented on HDFS-14669:
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[~ayushtkn]
submit v4 patch just same as v2.
one thing more is left here, this test function still get 2 little problems.
# the recheck logics is not actually working, it only recheck assertions but
didn't rescan to update compared values
# if assertion fails, the assertion exception was swallowed and a misleading
time out exception is thrown
should we fix these little problems(a new Jira or a addendum to HDFS-13819 ),
or should we just ignore it, after all, things only got little strange when
asssertion failes.
> TestDirectoryScanner#testDirectoryScannerInFederatedCluster fails
> intermittently in trunk
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-14669
> URL: https://issues.apache.org/jira/browse/HDFS-14669
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 3.2.0
> Environment: env free
> Reporter: qiang Liu
> Assignee: qiang Liu
> Priority: Minor
> Labels: scanner, test
> Attachments: HDFS-14669-trunk-001.patch, HDFS-14669-trunk.002.patch,
> HDFS-14669-trunk.003.patch, HDFS-14669-trunk.004.patch
>
>
> org.apache.hadoop.hdfs.server.datanode.TestDirectoryScanner#testDirectoryScannerInFederatedCluster
> radomlly Failes because of write files of the same name, meaning intent to
> write 2 files but 2 files are the same name, witch cause a race condition of
> datanode delete block and the scan action count block.
>
> Ref ::
> [https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-x86/1207/testReport/junit/org.apache.hadoop.hdfs.server.datanode/TestDirectoryScanner/testDirectoryScannerInFederatedCluster/]
>
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