Hello, I think I may be affected by this bug too. Since I updated to Debian Buster, a few days ago, I noticed that my disk space was quickly filled by a huge amount of logs. Under closer inspection, it appears that tracker-extract is having troubles handling the files in a *specific* repository. syslog, messages and user.log were full of messages like this:
> Jul 11 11:26:28 aquarius tracker-extract[4665]: Could not insert > metadata for item > "file:///home/sylvhem/Images/Eldritch%20Caf%C3%A9/%C3%89mojis/Drapea > ux/mutstd_0.2.0_shortcode_png64/mutstd_0.2.0_shortcode_png64/emoji/ex > pressions/hands/clw/wave_clw_x80.png": Subject `urn:uuid:0af2f9cd- > 54bf-f9c9-62d7-539cb2bd2b60' is not in domain `nie:DataObject' of > property `nie:dataSource' > Jul 11 11:26:28 aquarius tracker-extract[4665]: If the error above is > recurrent for the same item/ID, consider running "tracker-extract" in > the terminal with the TRACKER_VERBOSITY=3 environment variable, and > filing a bug with the additional information > Jul 11 11:26:28 aquarius tracker-extract[4665]: Could not insert > metadata for item > "file:///home/sylvhem/Images/Eldritch%20Caf%C3%A9/%C3%89mojis/Drapea > ux/mutstd_0.2.0_shortcode_png64/mutstd_0.2.0_shortcode_png64/emoji/ex > pressions/hands/clw/wave_clw_x50.png": Subject `urn:uuid:63b3e795- > 19fa-4231-64dd-c2769191b863' is not in domain `nie:DataObject' of > property `nie:dataSource' > Jul 11 11:26:28 aquarius tracker-extract[4665]: If the error above is > recurrent for the same item/ID, consider running "tracker-extract" in > the terminal with the TRACKER_VERBOSITY=3 environment variable, and > filing a bug with the additional information I tried to delete the files as a quick way to "fix" the problem, but I only ended up with messages like those instead: > Jul 11 12:25:46 aquarius tracker-extract[4864]: Call to > gst_discoverer_discover_uri(file:///home/sylvhem/Images/Eldritch%20Ca > f%C3%A9/%C3%89mojis/Drapeaux/mutstd_0.2.0_shortcode_png64/mutstd_0.2. > 0_shortcode_png64/emoji/expressions/hands/clw/fist_facing_left_clw_g4 > .png) failed: Ressource introuvable. > Jul 11 12:25:46 aquarius tracker-extract[4864]: Call to > gst_discoverer_discover_uri(file:///home/sylvhem/Images/Eldritch%20Ca > f%C3%A9/%C3%89mojis/Drapeaux/mutstd_0.2.0_shortcode_png64/mutstd_0.2. > 0_shortcode_png64/emoji/expressions/hands/clw/fist_facing_left_clw_b3 > .png) failed: Ressource introuvable. I took less than two days for tracker-extract to fill my entire disk with 7Go of log messages. Regards. -- Sylvhem