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https://issues.apache.org/jira/browse/LUCENE-8203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16397418#comment-16397418
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Hoss Man commented on LUCENE-8203:
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bq. It's also surprising how it sometimes fails with a
DirectoryNotEmptyException without reporting issues about deleting inner files
of the directory.
Do you have an example of that?
In the example you posted, the DirNotEmpty comes from
{{lucene.search.TestBoolean2_B7B1F66EB9785AE1-001}} after saying it already had
an AccessDeniedException trying to delete
{{lucene.search.TestBoolean2_B7B1F66EB9785AE1-001\tempDir-001}} -- so the "Not
Empty" makes sense.
I've seen this pattern a lot, but I can't remember ever seeing
DirectoryNotEmptyException w/o already reporting a problem w/some other file in
that directory.
> Windows failures when removing test directories
> -----------------------------------------------
>
> Key: LUCENE-8203
> URL: https://issues.apache.org/jira/browse/LUCENE-8203
> Project: Lucene - Core
> Issue Type: Test
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: image-2018-03-13-19-15-51-149.png
>
>
> I was looking at Lucene failures of Policeman Jenkins' Windows job
> (https://jenkins.thetaphi.de/job/Lucene-Solr-master-Windows) and they all
> fail when cleaning up temporary files/dirs used for testing, eg.
> {noformat}
> [junit4] ERROR 0.00s J1 | TestBoolean2 (suite) <<<
> [junit4] > Throwable #1: java.io.IOException: Could not remove the
> following files (in the order of attempts):
> [junit4] >
> C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001\tempDir-001:
> java.nio.file.AccessDeniedException:
> C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001\tempDir-001
> [junit4] >
> C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001:
> java.nio.file.DirectoryNotEmptyException:
> C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001
> [junit4] > at
> __randomizedtesting.SeedInfo.seed([B7B1F66EB9785AE1]:0)
> [junit4] > at org.apache.lucene.util.IOUtils.rm(IOUtils.java:329)
> [junit4] > at java.lang.Thread.run(Thread.java:748)
> {noformat}
> Has anyone ideas what the problem is? At first sight it looks:
> - not due to unclosed index inputs or MockDirectoryWrapper would barf too
> - not related to the unmap hack since we have failures on tests that do not
> use MmapDirectory at all like TestNIOFSDirectory
> - not due to the fact that we do not release resources in a try/finally or
> try-with-resources block or junit would report the exception that prevented
> the dir/input from being closed as well
> It's also surprising how it sometimes fails with a DirectoryNotEmptyException
> without reporting issues about deleting inner files of the directory.
> I don't have much background on this issue so I could easily have missed
> something.
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