As reported by the Associated Press (AP), Twitter blamed systems failures, and not a surge in traffic surrounding the Olympic games, for an outage on Thursday, July 26 that torpedoed the micro-blogging site globally for more than an hour. The widespread site interruption was caused by a "noteworthy" double failure in its data centers, said Twitter. "When one system fails, a parallel one is meant to take over, but two systems coincidentally stopped working at around the same time," the company explained in statement.
Full story:Twitter: Data center problems caused outage (AP via Google News)