nagios, possibly at noc02 (or both) should monitor mirrormanager metalinks and tell us if they start returning "Bad Request" instead of valid data.
We already had a check on /mirrorlist?repo=fedora-12&arch=i386&country=US but it did not trigger during the outage. My only assumption is that the f12 mirrorlist wasn't actually affected.
In puppet commit 0c419cf3 I have updated the check to look for rawhide instead of f12, changed arch to x86_64, and changed country to global. It now checks for the string 'development' as well, instead of 'releases' since rawhide's mirrors don't have the string 'releases'.
Login to comment on this ticket.