Our web server got stuck in some sort of loop where it was consuming a lot of CPU but not serving pages effectively at around 1:38 PM.  It slowed the machine down to the point where it was unresponsive to commands.

     At 2:46 PM I gave up trying to troubleshoot and rebooted the machine after which it returned to normal operations.  I was unable to find anything out of the ordinary in the logs that indicated the reason for it’s behaviour.