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Posted to issues@commons.apache.org by "Ralf Hauser (JIRA)" <ji...@apache.org> on 2016/08/15 15:52:20 UTC
[jira] [Commented] (IO-497) DeferredFileOutputStream produces
unhandled IOExceptions if the java.io.tmpdir is deleted
[ https://issues.apache.org/jira/browse/IO-497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15421172#comment-15421172 ]
Ralf Hauser commented on IO-497:
--------------------------------
see also IO-512
> DeferredFileOutputStream produces unhandled IOExceptions if the java.io.tmpdir is deleted
> -----------------------------------------------------------------------------------------
>
> Key: IO-497
> URL: https://issues.apache.org/jira/browse/IO-497
> Project: Commons IO
> Issue Type: Bug
> Components: Streams/Writers
> Affects Versions: 2.4
> Environment: unix-like operating systems where temporary disk storage is routinely purged; CentOS specifically
> Reporter: Nicholas Byrd
> Attachments: dfos-bug-v2.tar.gz, dfos-bug.tar.gz, example_stack.txt
>
>
> In the event that the Java temporary directory is deleted prior to the DeferredFileOutputStream trying to use it, the stream will throw one of two different IOExceptions (depending on how the Stream was constructed).
> This may sound like an unrealistic use-case at first, but it is legitimate as one of my company's applications encountered it after the underlying operating system (CentOS) automatically purged the contents of its tmp directory. (The application uses Commons FileUpload, which invokes DeferredFileOutputStream and does not handle the error itself.) Our current work-around is to restart the server when this happens, but we feel that the underlying library should perhaps be intelligent enough to recover from such an error.
> Additionally, it seems an awkward experience that two different errors are produced based on how the stream was constructed. One approach produces a FileNotFoundException while the other produces a plain IOException.
> A small maven project containing a single JUnit test that highlights the error will be attached (see [dfos-bug.tar.gz|https://issues.apache.org/jira/secure/attachment/12783728/dfos-bug.tar.gz]).
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