Large tomcat9 MediaDataBox files in tmp, can I delete them?

#1

The XWiki disk is full and am hoping to do some cleanup on the xwiki server.
XWiki Debian 12.8

Are you familiar with these?

8.0K    /tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-fwupd.service-8uIedi
8.0K    /tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-systemd-logind.service-9qI9ti
8.0K    /tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-systemd-resolved.service-sdAcFg
8.0K    /tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-systemd-timesyncd.service-YW7wIg
6.5G    /tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-tomcat9.service-Hx1IOg
8.0K    /tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-upower.service-3X3UVf

I lsof them and no process is using them. Also, I would not think important files should be /tmp

But they are mostly updated at some point today:
/tmp/systemd-private-bf544d097f504ba1870be0a1bb380016-tomcat9.service-Hx1IOg/tmp/

-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:20 'MediaDataBox127353739995356302org.mp4parser.boxes.iso14496.part12.MediaDataBox@397ac261'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:39 'MediaDataBox1295644232374290917org.mp4parser.boxes.iso14496.part12.MediaDataBox@17e075f2'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:41 'MediaDataBox1602438348704687216org.mp4parser.boxes.iso14496.part12.MediaDataBox@6a2a7af5'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:18 'MediaDataBox181091311046329183org.mp4parser.boxes.iso14496.part12.MediaDataBox@1511f2fe'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:40 'MediaDataBox1955483067931172527org.mp4parser.boxes.iso14496.part12.MediaDataBox@57335d7f'
-rw-r----- 1 tomcat tomcat 380108758 Nov  9 15:54 'MediaDataBox2791344085393849659org.mp4parser.boxes.iso14496.part12.MediaDataBox@c88fb98'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 14:09 'MediaDataBox3479690637569126869org.mp4parser.boxes.iso14496.part12.MediaDataBox@4beb4475'
-rw-r----- 1 tomcat tomcat 282945596 Nov  4 19:34 'MediaDataBox3600357965714337213org.mp4parser.boxes.iso14496.part12.MediaDataBox@69665b01'
-rw-r----- 1 tomcat tomcat 282945596 Nov  4 19:39 'MediaDataBox3934774981654931114org.mp4parser.boxes.iso14496.part12.MediaDataBox@1ef52b25'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:15 'MediaDataBox3959833521931750961org.mp4parser.boxes.iso14496.part12.MediaDataBox@647d0d1b'
-rw-r----- 1 tomcat tomcat 380108758 Nov  9 15:54 'MediaDataBox4072163358536964627org.mp4parser.boxes.iso14496.part12.MediaDataBox@57a74991'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:14 'MediaDataBox4657331022505349786org.mp4parser.boxes.iso14496.part12.MediaDataBox@7a07fca7'
-rw-r----- 1 tomcat tomcat 150772132 Nov  4 19:34 'MediaDataBox5193006795456568787org.mp4parser.boxes.iso14496.part12.MediaDataBox@892fe64'
-rw-r----- 1 tomcat tomcat 380108758 Nov  9 12:10 'MediaDataBox5445567814888505893org.mp4parser.boxes.iso14496.part12.MediaDataBox@513f189e'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:14 'MediaDataBox5628755842007739946org.mp4parser.boxes.iso14496.part12.MediaDataBox@929bbd8'
-rw-r----- 1 tomcat tomcat 150772132 Nov  4 19:39 'MediaDataBox6434569977823363173org.mp4parser.boxes.iso14496.part12.MediaDataBox@20c2d51a'
-rw-r----- 1 tomcat tomcat 187428864 Nov  9 15:58 'MediaDataBox6659103552954935918org.mp4parser.boxes.iso14496.part12.MediaDataBox@2fd6d142'
-rw-r----- 1 tomcat tomcat 380108758 Nov  9 12:10 'MediaDataBox6836601281189494901org.mp4parser.boxes.iso14496.part12.MediaDataBox@2d579bd9'
-rw-r----- 1 tomcat tomcat  24382186 Oct 31 10:14 'MediaDataBox6884277490933135674org.mp4parser.boxes.iso14496.part12.MediaDataBox@253f2a4d'
-rw-r----- 1 tomcat tomcat 380108758 Nov  9 15:57 'MediaDataBox6944610769352160899org.mp4parser.boxes.iso14496.part12.MediaDataBox@4a34455a'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 14:08 'MediaDataBox7127713438357681592org.mp4parser.boxes.iso14496.part12.MediaDataBox@6f382275'
-rw-r----- 1 tomcat tomcat  66561971 Nov  4 19:34 'MediaDataBox7292548873611520905org.mp4parser.boxes.iso14496.part12.MediaDataBox@412bf67c'
-rw-r----- 1 tomcat tomcat 380108758 Nov  9 15:56 'MediaDataBox7679585212224187159org.mp4parser.boxes.iso14496.part12.MediaDataBox@3c24b364'
-rw-r----- 1 tomcat tomcat  66561971 Nov  4 19:40 'MediaDataBox8237997740813251831org.mp4parser.boxes.iso14496.part12.MediaDataBox@709d50d'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:18 'MediaDataBox8604159006912311147org.mp4parser.boxes.iso14496.part12.MediaDataBox@17c86f54'
-rw-r----- 1 tomcat tomcat  24382186 Oct 31 10:13 'MediaDataBox8716484307411910895org.mp4parser.boxes.iso14496.part12.MediaDataBox@2f0db78'
-rw-r----- 1 tomcat tomcat 279589249 Nov  9 13:41 'MediaDataBox9041603539096752199org.mp4parser.boxes.iso14496.part12.MediaDataBox@665677f'

I see they may have been made due to an old tomcat bug

#2

XWiki has a dedicated temporary folder, and it’s not in /tmp generally (it’s in whatever work directory the application server provides to XWiki).

“MediaDataBox” does not ring a bell. [TIKA-3203] MP4Parser temporary files are not deleted from Tomcat temp folder - ASF JIRA could indeed fit as XWiki 12.8 uses Tika 1.24.1 (but it moved to 1.25 in 13.0), but do you have video files as attachments (it’s not very common, which is probably why we never noticed it) ?

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#3

Yes actually attaching videos has become a trend on our wiki and people loved adding more so I guess that could be whats happening then.

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