January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
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打造网络自动化文化
｜
395
不以同样的方式失败两次。带着“失败在所难免（因为躲不开）”的假设去行动并制订好
从中汲取教训的计划。一些网络规模（
web-scale
）的公司之所以对失败感到兴奋
，可能是
因为它们的流程和文化，失败往往代表了一个尚未发现的不足，这样就可以着手处理新的
问题了。这些公司会修改或建立自己的系统来解决该问题。
因此，对我们其他人来说，拥抱失败的想法并没有太大不同。从失败中学习，无论是由于
现有技术中的
bug
造成的中断
，还是由于自动化工作流程或脚本中的失误导致数据中心停
机。有没有自动化，都会发生失败，关键是要理解并安排组织如何应对。
这就是自动化测试如此重要的原因。将这一点落实到位意味着做出更改时，
测试不是可有可无的——从字面上就反映出了变更是如何进入生产环境的。
你的自动化测试就是你过去所得到教训的机器语言版本。第
10
章讨论过自
动化测试。
上一节谈到了获得企业认同的重要性，这也是要这么做的一个重要原因。无论身处自动化
领域的哪个位置，失败都是
IT
的自然组成部分
。企业的认同可以把“扔掉这些脚本”的
对话变成从失败中学习并确保不再重蹈覆辙的交谈。事后反思，弄清楚问题所在，用数据
说话，拿出分析的态度而不是指责。失败不代表你会一直错下去，它也表明你的技术栈或
技能包正在成熟并经历着成长的阵痛。在讨论架构以及与企业协调资源和目标时，都要加
入“如果……怎样”的情景。将失败规划融入所做的一切事情中，这样当大家冲向网络运
维中心（
Network Operations Center
，
NOC
）的时候，就不会措手不及了。 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.