Notice: file_put_contents(): Write of 7384 bytes failed with errno=28 No space left on device in /var/www/group-telegram/post.php on line 50
bupt.moe | Telegram Webview: bupt_moe/2307 -
Telegram Group & Telegram Channel
#cloudflare #事故回顾
Cloudflare 2021年12月17日事故回顾
省流:大批量rollback导致addressing API超时
-> 更新QuickSliver(某种Redis类似物)的cronjob脚本出错
-> QuickSliver 相关的 key 是空值
-> 空值爆破了 dosd (分析流量特征来更新恶意流量指纹的守护进程)
-> frontline(第一层DDoS防御机制) 检测意外依赖了 dosd 导致所有流量无法通过。

事故教训:
1. 写bash脚本之前三思,或者干脆不要用bash写脚本;
2. Rust的 match 不是让你用来 unwrap() 的;
3. 对于某些服务,想清楚是 fail close 还是 fail open;
4. 各类API的metric要记录好方便事后找问题。
Youtube介绍



group-telegram.com/bupt_moe/2307
Create:
Last Update:

#cloudflare #事故回顾
Cloudflare 2021年12月17日事故回顾
省流:大批量rollback导致addressing API超时
-> 更新QuickSliver(某种Redis类似物)的cronjob脚本出错
-> QuickSliver 相关的 key 是空值
-> 空值爆破了 dosd (分析流量特征来更新恶意流量指纹的守护进程)
-> frontline(第一层DDoS防御机制) 检测意外依赖了 dosd 导致所有流量无法通过。

事故教训:
1. 写bash脚本之前三思,或者干脆不要用bash写脚本;
2. Rust的 match 不是让你用来 unwrap() 的;
3. 对于某些服务,想清楚是 fail close 还是 fail open;
4. 各类API的metric要记录好方便事后找问题。
Youtube介绍

BY bupt.moe


Warning: Undefined variable $i in /var/www/group-telegram/post.php on line 260

Share with your friend now:
group-telegram.com/bupt_moe/2307

View MORE
Open in Telegram


Telegram | DID YOU KNOW?

Date: |

Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. Russians and Ukrainians are both prolific users of Telegram. They rely on the app for channels that act as newsfeeds, group chats (both public and private), and one-to-one communication. Since the Russian invasion of Ukraine, Telegram has remained an important lifeline for both Russians and Ukrainians, as a way of staying aware of the latest news and keeping in touch with loved ones. He adds: "Telegram has become my primary news source." READ MORE
from sa


Telegram bupt.moe
FROM American