Some instances located in US (in ondemandus14 CloudStack) were experiencing performance issues and/or service issues during 1 minute. It was caused by overloaded database. The service was restored and it operations normally.
For information on identifying the stack where your instance is hosted, please review the "Identifying Your Sugar Cloud Stack" section of the Using the Support Portal guide:
ondemandus14 experienced high load again between 13:06 -13:07 and 13:11 - 13:12 PST.