Facebook Engineers Reveal Cause of Monday Outage

Facebook Engineers Reveal Cause of Monday Outage

Facebook said it was “sorry for the inconvenience” on its multiple platforms for those who use them for both personal and business reasons.

“The underlying cause of this outage also impacted many of the internal tools and systems we use in our day-to-day operations, complicating our attempts to quickly diagnose and resolve the problem,” Facebook engineers wrote Monday night on the social media platform itself.

Facebook Engineers Reveal Cause of Monday Outage

“Our engineering teams have learned that configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication. This disruption to network traffic had a cascading effect on the way our data centers communicate, bringing our services to a halt.”

Facebook Engineers Reveal Cause of Monday Outage

Services for all the social mediums got restored by 6 p.m., but not before an estimated $6 billion in revenue was lost for Facebook CEO Mark Zuckerberg. Regardless, the social platform said no user data was compromised, and that the outage was caused from a “configuration change.”

“We want to make clear at this time we believe the root cause of this outage was a faulty configuration change. We also have no evidence that user data was compromised as a result of this downtime,” Santosh Janardhan wrote on the engineering page.

Facebook Engineers Reveal Cause of Monday Outage

To the huge community of people and businesses around the world who depend on us: we’re sorry. We’ve been working hard to restore access to our apps and services and are happy to report they are coming back online now,” Facebook tweeted.

Facebook, Instagram, and WhatsApp became inaccessible for large numbers of people at about 5pm UK time (12pm ET), with Downdetector.com citing reports of problems from millions of social media users around the world. A map on the site showed, for instance, reports of outages.

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