September 2021
Beginner to intermediate
392 pages
12h 13m
Chinese
book
Google系统架构解密： 构建安全可靠的系统
by Heather Adkins, Betsy Beyer, Paul Blankinship, Piotr Lewandowski, Ana Oprea, Adam Stubblefield
Content preview from Google系统架构解密： 构建安全可靠的系统
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10
｜
第
1
章
议。将如第
16
章和第
17
章所述，
Google
已经将危机响应转化成名为“
Google
事件管理”
（
Incident
Management at Google, IMAG
）的程序，包含处理各类事件的标准化方法（无论
是系统中断，还是自然灾害），并组织有效的响应。
IMAG
是基于美国突发事件指挥系统
（
Incident
Command System, ICS
）模型建立的，这是一种用于指挥、控制和协调多个政府
机构的应急人员的标准化方法。
当没有面临持续事件的压力时，应急人员通常会有大段的空白时间，没有行动。在这些时
间段里，团队需要保持个人技能和行动的敏锐性，并改进流程和基础设施，为下一次的应
急做准备。
Google
的灾难恢复测试系统（
Disaster Recovery
Testing program, DiRT
）会定期
模拟各种内部系统故障，迫使团队去应付这些场景。频繁地攻击性安全演习能测试防御能
力，并有助于识别新的漏洞。
Google
甚至在小事件中也使用
IMAG
，这进一步促使我们定
期使用应急工具和流程。
1.4.9
恢复
从安全事故中恢复，通常需要为了修复漏洞而打补丁。直觉上，你希望使用非常可靠、经
常运行的机制让该过程尽快流转。然而，快速推送变更的能力是一把双刃剑：虽然此功能
可以帮助快速关闭漏洞，但它也可能引入错误或性能问题，从而造成大量破坏。如果漏洞
广为人知或风险严重，则快速推送补丁的压力更大。推动修复程序的节奏究竟是快还是慢
（缓慢推进时确保无副作用，但漏洞就存在被利用的风险），最终归结为风险评估和业务决 ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.