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
% x8 z! F& v. I- M3 T$ W/ I7 Q
" \- J1 V& \# P7 Q" M事件整整影响了27 分钟
. A' I. k' P7 i# W
' W7 d8 U& X$ y这种全球性的502 应该不是ddos 引起的
3 s/ _) P) ?- w5 z6 x! Q3 o3 [4 u: ]) M4 j8 U
后来看cloudflare 的email,应该是内部程序的问题
7 d% S9 \" d. B0 e" ~ f' F ~4 k1 e' [
Dear Cloudflare Customer, / Q( O' C' _" c0 S" v0 |' s
3 m* ^) n9 d9 g
Today at approximately 13:42 UTC we experienced a global service disruption that affected most Cloudflare traffic for 27 minutes. + D# L' O" W3 ^4 d. I4 Z7 v8 Y
' {9 F' w5 Q) s7 }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. " n6 ~2 K3 P/ p, k6 f+ @7 n- N, v, @/ v
/ m, V1 V% ]8 Z6 N5 f7 \( tWe’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.
3 u- W3 l2 s+ [* v$ k9 O+ k# ~, i5 t7 q, l9 k
~The Cloudflare Team & A; {5 z) k" w: S7 K: S/ b
' X7 H2 a: H1 H, a, L- V" G
: x8 E/ ^4 R' ~
|