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Widespread Cloudflare outage blamed on mysterious traffic spike (arstechnica.com)
submitted 9 months ago* (last edited 9 months ago) by tonytins@pawb.social to c/technology@lemmy.world
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A Cloudflare spokesperson told Ars that the cloud services provider saw “a spike in unusual traffic to one of Cloudflare’s services,” which “caused some traffic passing through Cloudflare’s network to experience errors.”

“We do not yet know the cause of the spike in unusual traffic,” the spokesperson said. “We are all hands on deck to make sure all traffic is served without errors. After that, we will turn our attention to investigating the cause of the unusual spike in traffic.”

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[-] Kazumara@discuss.tchncs.de 7 points 9 months ago* (last edited 9 months ago)

The bad config file is somewhere in the middle of the chain of causality.

They changed database permissions, revealing a dormant bug in a database query, leading to config files being generated badly with duplicate lines, making them too large for intake by the bot detection service, which didn't have good input validation and made the process panic instead, ruining the service.

this post was submitted on 18 Nov 2025
563 points (99.0% liked)

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