Hello TrueNAS Community,
I’m encountering a persistent issue with my TrueNAS installation (ElectricEel-24.10.2) where I’m unable to delete the dataset “tank/iso”. When I attempt to delete it through the web interface, I receive the error: “[EBUSY] Failed to delete dataset: cannot destroy ‘tank/iso’: dataset is busy. These running processes are using tank/iso: qbittorrent-nox”.
However, I’ve taken several steps to investigate and resolve this, but the issue persists:
- Checked Active Processes: I’ve used the TrueNAS web interface and the command
ps aux | grep qbittorrent-nox
via SSH to check for runningqbittorrent-nox
processes. While I did find processes initially, they seem to reappear very quickly after being killed. - Attempted to Stop qbittorrent-nox Service: I tried to stop the
qbittorrent-nox
service, stopped completely the docker container and gluetun too (I’ve installed them via dockge). seem anyway that qbittorrent.nox is referred to an old installation (I used the infamous and crappy truecharts…) - Tried to Prevent Restarts: I attempted to disable the automatic start of the
qbittorrent-nox
. I also tried terminal commands likekill
on theqbittorrent-nox
processes and investigateds6-supervise
(the parent process) and tried to kill those as well, but theqbittorrent-nox
processes keep restarting. - Rebooted the System: I rebooted the entire TrueNAS system and immediately tried to delete the dataset after the system came back online, but the “dataset is busy” error persists.
- Checked Mount Points: I used the command
mount | grep tank/iso
to ensure the dataset wasn’t mounted. The command returned no output. - Checked ZFS Holds: I ran
zfs holds tank/iso
to check for any active ZFS holds on the dataset. The output indicated “no datasets available”, suggesting no holds are present.
Despite these steps, I am still unable to delete the “tank/iso” dataset due to the “dataset is busy” error, seemingly caused by qbittorrent-nox
which keeps restarting or having some persistent lock.
Has anyone else experienced a similar issue or have any suggestions on how to further troubleshoot this? I’m open to any advice or commands I can run to gather more information or resolve this.
Thank you in advance for your help!