SOLVED: Disk full because of transcode directory

[TheDreadPirate]

That file count is not abnormally high. Each transcode file is NOT the full movie/show. Transcode files are a few seconds of the original video so that they can be served in small chunks. This is how Youtube/Twitch/Netflix/etc. serves up content for their clients. Depending on the length of the video, this could mean dozens or hundreds of segments per movie/show. So the fact that you have 13K for 10 users over 24 hours is not unusual.

As gnattu mentioned, the NORMAL behavior is that the client gracefully ends the watch sessions and Jellyfin IMMEDIATELY cleans up the transcode files. If the client is not terminating the sessions gracefully then Jellyfin does not clean up immediate and this cleanup job will come around once a day to remove them.

What would cause a client to NOT gracefully end a session? Could be several reasons and it varies from client to client.

If you could provide your full server log via pastebin, we might be able to narrow down the cause.