, b' [1 w- c) G这种全球性的502 应该不是ddos 引起的 9 M- s) t5 i' g3 v4 p; {+ H! R, A , S3 Y& g, m" i后来看cloudflare 的email,应该是内部程序的问题 7 G% ~- l) N# g0 s! ^( r9 C8 o& g% v0 ]* s- S! t( y
Dear Cloudflare Customer, 0 k$ e) ]1 k/ L: d
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Today at approximately 13:42 UTC we experienced a global service disruption that affected most Cloudflare traffic for 27 minutes. $ a: z1 O* E. d6 ?6 H; b0 t8 X & {0 K: `0 C9 k+ t; t/ Z* EThe 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. $ ?) e j, D. p/ z
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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. ! K+ o. ^/ F) f+ x9 |* `