Amazon on April 22 was still wrangling with troubles at its Web hosting service used by Foursquare, Quora, Reddit and other popular websites. Amazon EC2 was being slowly restored a day after the onset of disruptive problems, but it may take a while to fully recover, according to updates on the service's online status dashboard.
"When a service that is heavily redundant, like this one is, goes out of band this long, they have a serious problem and they don't have their arms around it," said analyst Rob Enderle of Enderle Group in Silicon Valley. Websites hosted by Amazon EC2 were sluggish or knocked offline on Thursday and the company has yet to disclose a cause.