Comment 5 for bug 1829394

Rick,

What's happening is we're rebooting machines while a hook is running. When juju comes back up, the hook is marked as failed.

It can take an arbitrary amount of time to get out of error state at that point because there is no guarantee on when the hook will get to retry.

We have added a longer delay to try to reduce the likelihood of hitting this, but it's not a sure thing and we still hit it some.