Stefan Mileschin

Following Monday’s massive service outage that took out all of its services, Facebook has published a blog post detailing what happened yesterday. According to Santosh Janardhan, the company's vice president of infrastructure, the outage started with what should have been routine maintenance. At some point yesterday, a command was issued that was supposed to assess the availability of the backbone network that connects all of Facebook’s disparate computing facilities. Instead, the order unintentionally took those connections down. Janardhan says a bug in the company’s internal audit system did not properly prevent the command from executing.

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