Comment 1 for bug 1470763

Reproduced it with latest master.

Root cause - Nova instance boot failed because of several different problems.

In my case my glance-registry failed to start because previous start went to be a zombie placeholding port 9191. Then were problems with image boot, lack of free space on machine...

So, the answer - problem is in environment.

So, nothing to do with Manila.

Thing about "router_id" and "subnet_id" is only that they were empty and could not be written to DB as non-nullable.