Writing to SMB, issues after moving VM off TrueNAS

[diskdiddler]

Hi All,

I ran a Ubuntu VM on TrueNAS Core for 2 years.
That Ubuntu VM mapped TrueNAS via SMB. (obviously, the same actual physical computer)
I ran qBittorrent, on top of docker on that VM.
qBittorrent wrote directly to a TrueNAS SMB share
This worked totally fine.


I recently built a nice little extra machine, running Proxmox and installed a fresh Ubuntu VM.
I mapped the same SMB paths and got docker, qBittorrent working.
Now I'm seeing a high quantity of "error" from qBittorrent, with the files being downloaded.
Unfortunately, this is totally inconsistent, some work for 5 minutes, then break, some finish, etc.
I have confirmed the torrents are ok, they work on a Windows client.

Google tells me this might be a file writing problem.
I copied my fstab from the old UbuntuVM exactly.

"//192.168.0.9/etcetcetc /mnt/etcetcetc cifs cache=none,credentials=/.smbcredentials,iocharset=utf8, 0 0"

Bear in mind, some files do complete ok unfortunately, indicating to me, that it's unlikely a permissions issue.
I can docker exec -i qbittorrent /bin/bash and even manually make files and folders


This problem began a couple of weeks ago, before I upgraded to 13, so it's not 13.

75 processes: 1 running, 74 sleeping
CPU: 5.9% user, 0.0% nice, 2.9% system, 0.0% interrupt, 91.2% idle
Mem: 1294M Active, 1605M Inact, 5736M Wired, 23G Free
ARC: 3288M Total, 760M MFU, 1293M MRU, 1180K Anon, 45M Header, 1184M Other
1099M Compressed, 3082M Uncompressed, 2.80:1 Ratio
Swap: 12G Total, 12G Free

PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
6200 root 1 52 0 178M 136M kqread 3 372:59 64.12% smbd
2023 root 13 20 0 865M 765M kqread 4 30:16 2.59% bhyve
1974 root 13 20 0 545M 427M kqread 7 20:06 2.09% bhyve
408 root 33 25 0 484M 298M kqread 1 10:24 0.89% python3.9

Can anyone smart help? I realise this is a little out of the scope of a TrueNAS fault but it may well be some kind of issue on the NAS.
I have no idea where to begin.

Any idea @Patrick M. Hausen you generally seem on top of stuff?

 

[diskdiddler]

Screenshot attached, you can see file movement, ability to write but random drop offs.
Some of them were much higher, 50% written and all kinds of things.

 

[diskdiddler]

In the interests of being thorough.

I have now installed the Windows client for qBittorrent with the same results *and* I have downloaded an older 4.39 version of it, which some people claim, fixes the issues.

I'm doing to do a little more testing under Windows, with another torrent client, just to be certain.
If I can fault this on another client, I've eliminated it being my linux VM and I've eliminated it being qBittorrent.