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Update About the October 4 Outage

Oct 4, 2021·1 min read

Summary

Facebook's October 4 outage resulted from a routine maintenance command mistakenly disconnecting all backbone network connections, taking Facebook data centers offline globally. Ads were not delivered, and advertisers were not billed for that period. However, campaign performance faced volatility during service restoration.

Additionally, an October 8 configuration change caused a shorter access issue. Facebook acknowledges the disruption, is compensating affected customers, and is enhancing testing and resilience to prevent future outages. The company emphasized learning from failures to strengthen infrastructure stability.

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