Just installed a fresh MAAS " MAAS version: 2.4.2 (7034-g2f5deb8b8-0ubuntu1)"
When I need to change the domain name for the controller machine "Controllers -> machine 'Maas.maas'" then change the domain and save, it revert to its original, and hit the below in the regiond.log:
2018-12-02 17:20:00 maasserver.websockets.protocol: [critical] Error on request (123) controller.update: 'NoneType' object is not subscriptable
Traceback (most recent call last):
File "/usr/lib/python3.6/threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 850, in worker
return target()
File "/usr/lib/python3/dist-packages/twisted/_threads/_threadworker.py", line 46, in work
task()
File "/usr/lib/python3/dist-packages/twisted/_threads/_team.py", line 190, in doWork
task()
--- <exception caught here> ---
File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 250, in inContext
result = inContext.theWork()
File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 266, in <lambda>
inContext.theWork = lambda: context.call(ctx, func, *args, **kw)
File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 122, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 85, in callWithContext
return func(*args,**kw)
File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 883, in callInContext
return func(*args, **kwargs)
File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 232, in wrapper
result = func(*args, **kwargs)
File "/usr/lib/python3/dist-packages/maasserver/utils/orm.py", line 756, in call_within_transaction
return func_outside_txn(*args, **kwargs)
File "/usr/lib/python3/dist-packages/maasserver/utils/orm.py", line 563, in retrier
return func(*args, **kwargs)
File "/usr/lib/python3.6/contextlib.py", line 52, in inner
return func(*args, **kwds)
File "/usr/lib/python3/dist-packages/maasserver/websockets/handlers/machine.py", line 365, in update
data = super(NodeHandler, self).update(params)
File "/usr/lib/python3/dist-packages/maasserver/websockets/base.py", line 422, in update
data = self.preprocess_form("update", params)
File "/usr/lib/python3/dist-packages/maasserver/websockets/handlers/machine.py", line 328, in preprocess_form
new_params["pool"] = params["pool"]["name"]
builtins.TypeError: 'NoneType' object is not subscriptable
I can confirm this also happens on 2.5.0 RC2.