Comment 3 for bug 1759945

I can't really comment on the defaults for anything other than placement, I wish I could but, time, energy, etc.

On placement the reason it's important to have a pretty hefty base is that every nova-compute process will talk to placement a few times per minute. Get the number of nova-computes up in the high numbers and as you might expect things will start to get crowded.

In my experiments, placement works fine when threads are available. That is: I'm not aware of it experiencing the problems that apparently keystone did at some point when it was configured to use both threads and processes.

I agree with your inclination Oliver: especially if you are able to get good feedback from people if things go sideways.