July 2023
Beginner to intermediate
270 pages
4h 48m
Chinese
Content preview from 可观测性工程
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一套偏见。尽管如此，我们仍然可以从量化成本开始，有条不紊地解开这个问题。
没有一个放之四海而皆准的答案可以说明可观测性的成本。但是可以做一些广泛的概
括。最简单的方法是从最明显的因素开始：你从商业可观测性供应商那里获得的账单。
在供应商关系中，更容易看到财务成本，因为它们就在同一个项目中。
当你第一次开始调查可观测性供应商的解决方案时（尤其是那些来自现有监控和
APM
解决方案工具，它们只是在几十年前的传统工具上贴了一个可观测性的标签），总的价格
会让你大吃一惊。惊愕的部分原因是新用户将这一价格与开源和“免费”的替代品相比
较，他们大概可以自己建立。然而，人们通常不习惯考虑自己的时间成本。当需要一个
小时来玩转一些基础设施和配置软件时，感觉
DIY
方案基本上是免费的。
在现实中，持续维护的成本
—
为上下文切换所消耗的时间、所有那些投入到没有核心
业务价值的东西上的机会成本、所有那些被免费解决方案抽走的时间
—
几乎总是被
低估。在实践中，即使你认为你已经考虑到了低估的问题，你仍然可能会低估。作为人
类，我们在维护成本的问题上的直觉是疯狂的，甚至是迷之乐观的。作为一个起点，这
是可以理解和宽恕的。
即使你超越了这个起点，有时也会因为遇到预算不匹配的问题而冲动地自己建立一个方
案。获得批准花钱购买软件，可能比让工程师花时间建立和维护一个内部替代方案更
难。然而，属于这一类的组织往往不愿意承认，这种免费的努力到底让他们的企业付出
了多少代价。克服预算不匹配可能会促使企业做出自建的最初决定，但从长期来看，这 ...
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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.