Comment 1 for bug 1627362

If this happens again, we'll need the contents of the discovery view. (You can get that with "sudo maas-region dbshell" and then "select * from maasserver_discovery;".)

It seems like the only time this should ever happen is if the database returns an invalid (or NULL?) value for one of the datetime fields in the view. But those should never be missing, so it's hard to say why this would be happening.