MAAS 2.2 production ready?

[Flo]

Hi,

we are currently testing MAAS 2.2.2
(2.2.2-6099-g8751f91-0ubuntu1~16.04.1) in a distrubuted setup (one
region-controller and multiple rack-controllers). After two weeks of
testing we are still not able to deploy hosts. Bugs we are facing:

installing a region-controller without a "local" rack-controller causes:
missing:
/usr/sbin/maas-rack

2017-08-23 11:23:36 provisioningserver.utils.services: [info]
observe-mdns: FileNotFoundError: [Errno 2] No such file or directory:
b'/bin/maas-rack'

The RPC communication fails very often because
http://maasserver/MAAS/rpc/ is not responding

It looks like the region-controller is not responding quite often -
causing cloud-init to fail (timeouts)

Anybody running MAAS 2.2.2 in production?

All the best,
Florian