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 & o7 J7 T& E! M: N3 m* M5 |9 P1 @ d
事件整整影响了27 分钟' |2 d+ |! ?( l# f* x4 ^0 C5 y
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这种全球性的502 应该不是ddos 引起的0 g3 _$ N `- }/ H9 B4 X8 M
$ G- |# q7 J. W. z后来看cloudflare 的email,应该是内部程序的问题8 D& v: x/ G8 v A3 i2 O. O
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Dear Cloudflare Customer, 9 c, [# `# M' T! H( a/ t
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Today at approximately 13:42 UTC we experienced a global service disruption that affected most Cloudflare traffic for 27 minutes. - P8 J. l7 P$ y/ _! o) f! t 6 h' S6 ^; B* C2 v2 h: wThe 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. 7 {$ i7 D7 d r
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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. 2 x' X+ K4 Q) j3 r4 [% {& d' }8 s$ ]0 u
~The Cloudflare Team + t# T4 I6 u2 \' \( K2 s% H1 Z* B- }+ e4 m( M0 f6 N