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How has the Facebook outage (October 2021) happened? Could it have been prevented?

Hi dear professionals,

Last week all social media and newspapers have been talking about the Facebook outage (October 4th).  Facebook has issued this update by Santosh Janardhan (VP of Infrastructure).

What exactly has happened there? Are we talking just about a human error? How could it have been prevented?

EB
Evgeny Belenky
Director of Community at PeerSpot (formerly IT Central Station)
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Network Management Applications offer comprehensive tools for monitoring, managing, and optimizing network performance. These applications facilitate fault analysis, performance management, and network provisioning to ensure a smooth operation of IT infrastructures.These applications serve as crucial instruments in IT management, providing detailed insights and control over complex networks. They enable organizations to monitor real-time performance, identify potential issues quickly, and...
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