Comment 7 for bug 1892294

In the case of 1890828, the relation errors occurred after the machine upgraded and before the unit upgraded.

Per #3, #4 logs, the relation errors happened after the unit upgraded.

Unfortunately the fix for 1890828 only removes the possibility of the problem occurring in the future, it does not resolve the current state. So we cannot verify, by upgrading again, that this issue is the same and thus fixed.

To resolve this case, I recommend adding a new gnocchi unit, to be a replacement, then removing gnocchi/2.