Cannot delete dataset

TrueNAS General
1

Hello everyone

Im trying to do abit of cleaning up. I have a bunch of datasets from apps ive long deleted. I am trying to delete this dataset and keep getting this error. Does anyone know what it might be?

Error Name: EBUSY
Error Code: 16
Reason: [EBUSY] Failed to delete dataset: cannot destroy ‘super_rad_cool_pool/app_data/trilium/trilium_data_storage’: dataset is busy
Error Class: CallError
Trace:

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concurrent.futures.process._RemoteTraceback: 
"""
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/middlewared/plugins/zfs_/dataset.py", line 229, in delete
    subprocess.run(
  File "/usr/lib/python3.11/subprocess.py", line 571, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['zfs', 'destroy', '-r', 'super_rad_cool_pool/app_data/trilium/trilium_data_storage']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.11/concurrent/futures/process.py", line 261, in _process_worker
    r = call_item.fn(*call_item.args, **call_item.kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/worker.py", line 115, in main_worker
    res = MIDDLEWARE._run(*call_args)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/worker.py", line 48, in _run
    return self._call(name, serviceobj, methodobj, args, job=job)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/worker.py", line 42, in _call
    return methodobj(*params)
           ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/zfs_/dataset.py", line 240, in delete
    raise CallError(f'Failed to delete dataset: {error}', errno_)
middlewared.service_exception.CallError: [EBUSY] Failed to delete dataset: cannot destroy 'super_rad_cool_pool/app_data/trilium/trilium_data_storage': dataset is busy
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/middlewared/api/base/server/ws_handler/rpc.py", line 360, in process_method_call
    result = await method.call(app, id_, params)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/api/base/server/method.py", line 57, in call
    result = await self.middleware.call_with_audit(self.name, self.serviceobj, methodobj, params, app,
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 954, in call_with_audit
    result = await self._call(method, serviceobj, methodobj, params, app=app,
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 771, in _call
    return await methodobj(*prepared_call.args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/service/crud_service.py", line 196, in delete
    return await self.middleware._call(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 771, in _call
    return await methodobj(*prepared_call.args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/service/crud_service.py", line 214, in nf
    rv = await func(*args, **kwargs)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/api/base/decorator.py", line 108, in wrapped
    result = await func(*args)
             ^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/pool_/dataset.py", line 842, in do_delete
    result = await self.middleware.call('zfs.dataset.delete', id_, {
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1051, in call
    return await self._call(
           ^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 779, in _call
    return await self._call_worker(name, *prepared_call.args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 785, in _call_worker
    return await self.run_in_proc(main_worker, name, args, job)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 681, in run_in_proc
    return await self.run_in_executor(self.__procpool, method, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 665, in run_in_executor
    return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2

Are there any shares still configured that point to this dataset ?

3

Or apps configured like filebrowser.

I suggest stopping any apps you have running and then trying the delete again

4

If everything else fails:

zfs destroy -fr ...

followed by a reboot.

5

Hi, thank you this worked perfectly

Thank you everyone for your input