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https://issues.apache.org/jira/browse/TIKA-2058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15449043#comment-15449043
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Tim Allison commented on TIKA-2058:
-----------------------------------
TIKA-2045's solution had to do with font caching (IIRC) within PDFBox; the
triggering file happened to be protected against extraction, but that was
incidental. Also, TIKA-2045 (again IIRC) had to do with high memory usage per
document, not a persistent/cross document memory leak. Is Tika failing on the
same documents consistently (like TIKA-2045), i.e. if you run Tika against a
single triggering file, does it use a crazy amount of memory; or does this seem
to be a caching-type memory leak across documents?
> Memory Leak in Tika version 1.13 when parsing millions of files
> ---------------------------------------------------------------
>
> Key: TIKA-2058
> URL: https://issues.apache.org/jira/browse/TIKA-2058
> Project: Tika
> Issue Type: Bug
> Affects Versions: 1.13
> Reporter: Tim Barrett
>
> We have an application using Tika which parses roughly 7,000,000 files of
> different types, many of the files are MSG files with attachments. This works
> correctly with Tika 1.9, and has been in production for over a year, with
> parsing runs taking place every few weeks. The same application runs into
> insufficient memory problems (java heap) when using Tika 1.13.
> I have used lsof and file leak detector to track down open files, however
> neither shows any open files when the application is running. I did find an
> issue with open files https://issues.apache.org/jira/browse/TIKA-2015,
> however there was a workaround for this and this is not the issue.
> I am sorry to have to report this with a level of vagueness, but with lsof
> turning nothing up I am a bit stuck as to how to investigate further. We are
> more than willing to help by testing on the basis of any ideas provided.
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