昨晚 cloudflare 发生了全球502, 也就是说只要是使用了cloudflare 的站点全部502,是全球范围内的事情 : c- g9 ?0 O" t2 ?. H) y( J( x8 }. n! h: F
事件整整影响了27 分钟' g; G8 e R ]( Z% E# i& w
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这种全球性的502 应该不是ddos 引起的 ' C. J, ]% q! d/ q / t/ i6 @. o8 H后来看cloudflare 的email,应该是内部程序的问题# `% b7 ]2 b9 c# C3 [
1 n4 `. l- x( [, [ x- s! bDear Cloudflare Customer, ' h7 M6 o: x5 h) X
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Today at approximately 13:42 UTC we experienced a global service disruption that affected most Cloudflare traffic for 27 minutes. 8 z# _2 h0 v% P) v, L
% E3 e9 b7 N- l5 v) _The issue was triggered by a bug in a software deploy of the Cloudflare Web Application Firewall (WAF) which resulted in a CPU usage spike globally, and 502 errors for our customers. To restore global traffic we temporarily disabled certain WAF capabilities, removed the underlying software bug, then verified and re-enabled all WAF services. ' x2 m$ w# ~ F6 J: Q8 n: H' b* P) G) n
We’re deeply sorry about how this disruption has impacted your services. Our engineering teams continue to investigate this issue and we will be sharing detailed incident report(s) on the Cloudflare blog. ) E! T7 A; _# u X7 R: i# x: F& I2 P~The Cloudflare Team 6 v; W2 j; M. K: P2 q# P I9 x L: p& s- H |0 A
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