Exception KeyError

edit

As you already know, http://ask.fedoraproject.org is in production deployment now and the site down went and we had to restart it. We caught this in the askbot log and I am not sure what it means or why the site went down. I am posting it here for the record

Tue Sep 27 13:14:40 2011] [error] Exception KeyError: KeyError(-1217226928,) in <module 'threading'="" from="" '="" usr="" lib="" python2.6="" threading.pyo'=""> ignored