Comment 16 for bug 1718699

I'm facing this bug on a 33-server openstack deployment using xenial-queens.
Curtin version: 18.1-17-gae48e86f-0ubuntu1~16.04.1

As per comment #14, the fix seems to be applied to version 17.1. Therefore, I can point that the problem still persists.

The failure is intermittent, meaning generally MAAS seems to correctly release servers.
But, sometimes, servers get stuck on pending during deployment and fail all subsequent deployments with errors similar to: https://pastebin.canonical.com/p/w6CJXBtHTf/

Applying the fix: maas <session> machine release <system_id> erase=true
(without quick_erase) solves the issue but is very slow.