Any way to delete all backup data but retain clients data and config?

Server
1

Hi, somehow my server keeps crashing with fatal exceptions. I don´t really know why, as I have not touched it in months and it has been working fine for years. But a few days ago it started failing. I have like 30 clients (many family and friends) and most of them backup via wan. I don’t have a problem nukin the backup sets, but I would like to avoid having to reconfigure the clients, or the server, etc.

Is there any way I could do that? any specific db file that i could keep/destroy to get to that state?

2

Preferable give information to solve that problem. Information about where this is see here Having problems with UrBackup? Please read before posting

In this specific case if you are on Windows sending the mentioned crash dump would be great!

Deleting the backup data might not solve the problem.

3

I was just trying to spare you the troubleshooting :sweat_smile:

[link censored]

I gave it one more shot today. It’s a windows enviroment, I’ve tried running all the usual .bats (cleanup, cleanup_database, remove_unknown, repair_database) but they all give an error at some point.

Now it stopped crashing, but it starts making “many” backups, only one actaully progresses, and but eventaully it just gets stuck, like in the screen (it’s been 8 hours that it’s stayed like this).

urbackup_stuck
urbackup_stuck1203×414 46.9 KB

Realtime log:

urbackup_stuck_2
urbackup_stuck_2814×451 87.1 KB

The UI works just fine, I can traverse it with no issues, but nothing seems to be actually happening on the backend after a while

.

I’ll upload the dump and logs to see if you can spot what’s causing the issues. But as I said, I have no problem losing the backups themselves if I can keep the clients, their configs, auth keys, etc.

The dumps are in file.io because of size.

[link censored]

Thanks in advance

4

I censored the links since they contain a lot of data that you might want to keep private. Perhaps send to me via mail/PM?

I could not access the crash dump (the website gave me an error message and could not download).

I see the following in the log. Could be the cause:

urbackup.log.9-2025-12-14 00:27:52: WARNING: Creating temporary file at "U:\urbackup_tmp\urbackup_tmp\urb212e3e690650e4440000000140114D28243.tmp" failed. Creating directory "U:\urbackup_tmp\urbackup_tmp"...
urbackup.log.9-2025-12-14 00:27:52: WARNING: Creating directory "U:\urbackup_tmp\urbackup_tmp" failed.
urbackup.log.9:2025-12-14 00:27:52: ERROR: Error creating temporary file at "U:\urbackup_tmp\urbackup_tmp\urb212e3e690650e4440000000140114D28243.tmp"
5

Thanks, I’ll send you the links via PM.

That error in the logs baffled me when I saw them. The backup location is R:\folder and the temp path is R:\urbakcup_temp, so I have no idea where the U: volume came from. The server only has a small C drive and a 14TB R: drive, no other volumes or disks.

7

Hi again. Well, given that it keeps stalling now, I’ll bite the bullet and delete everything and start from scratch. It will be faster that way than trying to get to the reason behind the problem. Thanks anyway.