[Digikam-devel] [digikam] [Bug 323888] Face recognition makes digikam fill all the available memory

[Scott]

https://bugs.kde.org/show_bug.cgi?id=323888

--- Comment #76 from Scott <scott_bugs at dewie.net.au> ---
(In reply to comment #73)
> (In reply to comment #68)
> > Sorry for the long delay,
> > 
> > I can confirm that his bug had regressed when I upgraded Ubuntu from 13.10
> > to 14.04 and from 4.0.0beta to stable.  But for me, after deleting
> > recognition.db it fixed the issue again, so I am starting to think there is
> > more than meets the eye.
> > 
> > The problem with libPGF is gone, but clearly one with libkface remains...
> 
> 
> Thank you for sharing this informaion Scott. Based on your feedback I went
> and did the same. After removing the recognition.db file, it is working a
> charm. But I still don't know if we have covered all the cases where the bug
> was reproducible.

I totally agree.  While in my specific case recompiling libPGF, putting it in
the right places and removing recognition.db when the bug regressed works, it's
clear that it did not for everyone.

Either steps were not followed, or there is something more.  But either way, it
would be nice to know just what is corrupting recognition.db in the first
place...

On trying to repeat the corruption (I think it may be related to the detection
and recognition option), i am now getting a crash when detecting, but tagging
is still working.

As for deleting face tags, as said before, that recognition.db is for
"fingerprints" only.  The tags and the face boxes themselves seem to be kept in
digikam4.db, if not in the metadata itself (that is of course if the write
metadata to images option is on!).  For my piece of mind, and portability, I
personally leave the metadata writing on...

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