Comment 10 for bug 1869797

I have done some research in the following related bug for charm-nova-cloud-controller, specifically around fixing many of the scenarios that cause an outage when memcached is down. Ideally this shouldn't happen and we can make some fixes around that, outside of HA:

https://bugs.launchpad.net/charm-nova-cloud-controller/+bug/1827397

I will follow-up once I determine a path of action in this and/or other bugs to generally improve the situation.