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" F1 [2 z% A( z J
a$ c) p0 y- ]9 N# x( H% t0 i
事件整整影响了27 分钟 , n! q* n# ~8 B, U9 x) f0 |* d . o$ z2 Z$ J4 I6 b+ y: V* G这种全球性的502 应该不是ddos 引起的 7 O V& p8 r; ^: [% J8 L- z* C# a8 ^' M' B0 @" I
后来看cloudflare 的email,应该是内部程序的问题" ]' [ U1 H( \$ u
0 A5 ^- m4 n6 WDear Cloudflare Customer, ) }) P" j# k1 s; w& S! x2 [+ I% r5 I* d
Today at approximately 13:42 UTC we experienced a global service disruption that affected most Cloudflare traffic for 27 minutes. / {5 T" Q3 L; A: G3 T$ D
5 T" W" U6 h2 d3 D$ o
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. / N8 e3 p( Q! S( d( n' W g- y2 w" i% N8 N! z# ^: ^
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. ) Y7 P" r: B, Z0 c" h4 W6 Z5 H7 |, }( S
~The Cloudflare Team ! U0 o5 r2 g# S2 H: C
) p3 _6 @0 p y6 f+ H. `2 h/ _+ M4 H5 g0 g- F9 _' ~