https://bugs.kde.org/show_bug.cgi?id=447133
Bug ID: 447133
Summary: Hang when switching thumbnails from database to local
directory
Product: digikam
Version: 7.4.0
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Thumbs-Engine
Assignee: digikam-bugs-n...@kde.org
Reporter: j...@kamens.us
Target Milestone: ---
I upgraded from 7.3.0 to 7.4.0. AppImage downloaded from digikam web site,
running on Ubuntu 21.10 64-bit.
I am using a mariadb database backend.
I was previously using local SQLite in ~/.digikam, and there were old files,
including an old thumbnails database, left over in that directory from before I
migrated to mariadb.
I launched 7.4.0, opened the digikam settings, hanged thumbnails from the
database to ~/.digikam, and clicked OK.
Digikam has now been hung for something like ten minutes.
I ran strace on it early in the hang and it was doing a whole of work reading
from a file descriptor. By the time I used lsof to find out what that file
descriptor was it was gone, so I don't know whether it was the database or the
thumbnails file.
Now strace doesn't show it doing much of anything at all, it's just sitting and
showing an occasional call to poll or futex.
After all of the above I killed and restarted digikam and it's working fine
now.
P.S. Thanks for all the work that goes into digikam, it is much appreciated.
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