Working with bfiller on IRC it seemed that the issue was with updating the URL Dispatcher database, we weren't able to recreate it, but felt like there was a chance it was happening more often. In that vein we're trying to get more data with a branch that will report recoverable errors on updates if we do get an issue. Hopefully that'll allow us to see if it was a one-off or a more systemic problem.
Working with bfiller on IRC it seemed that the issue was with updating the URL Dispatcher database, we weren't able to recreate it, but felt like there was a chance it was happening more often. In that vein we're trying to get more data with a branch that will report recoverable errors on updates if we do get an issue. Hopefully that'll allow us to see if it was a one-off or a more systemic problem.
Marking this as Needs Information for now.
https:/ /code.launchpad .net/~ted/ url-dispatcher/ recoverable- inserts/ +merge/ 222058