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https://issues.apache.org/jira/browse/AVRO-2286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280960#comment-17280960
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ASF subversion and git services commented on AVRO-2286:
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Commit 568ee67c2d0c8d62049741ae78dc91910aa1b6f2 in avro's branch
refs/heads/dependabot/nuget/lang/csharp/nunit3testadapter-3.17.0 from RyanSkraba
[ https://gitbox.apache.org/repos/asf?p=avro.git;h=568ee67 ]
AVRO-3033: Fix flaky file descriptor test (#1078)
It looks like before fixing the bug AVRO-2286, the number of
openFilesBeforeOperation was always greater than openFilesAfterOperation. In
practice, now they're usually the same value, which is promising evidence that
there isn't a resource leak there.
The flakiness of the test comes from the fact that "something" might be fuzzing
either of them off by one. I used to see this in travis and local builds too
(but infrequently). It might be a background, system-process or an action like
garbage collection. I don't think it's instability of the machine, it's just
not as deterministic as we'd like.
> DataFileReader leaks file descriptor on exception during construction
> ---------------------------------------------------------------------
>
> Key: AVRO-2286
> URL: https://issues.apache.org/jira/browse/AVRO-2286
> Project: Apache Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.8.2
> Reporter: Holger Fleischmann
> Assignee: Martin Jubelgas
> Priority: Major
> Fix For: 1.9.0
>
> Attachments: DataFileReaderCloseBug.java
>
>
> The constructor {{DataFileReader(File, DatumReader)}} does not close the
> already opened file again when it throws an exception. This leads to a leaked
> file descriptor and especially to not being able to delete the still open
> invalid file then (at least on Windows).
> This case is important when Avro files may be truncated on write, e.g. due to
> a hard shutdown, and the application must be able to recover from such a
> situation on the next restart.
> Please see the attached file {{DataFileReaderCloseBug.java}} to reproduce the
> problem.
> I did not find that problem in Jira/mailing lists. Thanks for your help in
> advance :)
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