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https://issues.apache.org/jira/browse/PDFBOX-2723?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-2723:
------------------------------------
Affects Version/s: (was: 1.8.9)
(was: 1.8.8)
> PDFBox*.tmp files not deleted by COSParser
> -------------------------------------------
>
> Key: PDFBOX-2723
> URL: https://issues.apache.org/jira/browse/PDFBOX-2723
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 2.0.0
> Environment: Windows and Linux, with issue being critical on Linux
> Reporter: Pascal Essiembre
> Assignee: Tilman Hausherr
> Labels: patch
> Fix For: 2.0.0
>
> Attachments: pdfbox.patch
>
> Original Estimate: 5m
> Remaining Estimate: 5m
>
> When parsing PDFs, temporary files get created under the system temp
> directory (e.g. PDFBox6525369863339991063.tmp). All files created for each
> documents are always deleted except for one. So each document parsed adds a
> new tmp file that never gets deleted. That's likely due to a stream never
> closed. When processing many PDFs on Linux in the same JVM instance, we get
> the crashing error: "Too many files open". Changing the max file handle on
> the OS is not always an option.
> I was able to fix this by modifying the {{COSParser}} class to close a
> {{COSStream}} instance:
> {code:title=COSParser.java, starting on line 312|borderStyle=solid}
> private long parseXrefObjStream(long objByteOffset, boolean isStandalone)
> throws IOException
> {
> // ---- parse indirect object head
> readObjectNumber();
> readGenerationNumber();
> readExpectedString(OBJ_MARKER, true);
> COSDictionary dict = parseCOSDictionary();
> COSStream xrefStream = parseCOSStream(dict);
> parseXrefStream(xrefStream, (int) objByteOffset, isStandalone);
> xrefStream.close(); // <--- *** NEW LINE ***
> return dict.getLong(COSName.PREV);
> }
> {code}
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