July 2023
Beginner to intermediate
270 pages
4h 48m
Chinese
Content preview from 可观测性工程
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推荐序三
窥见更远：望远镜和软件可观测性
软件可观测性是近年来快速发展的一个主题，从技术到商业，我们看到围绕该主题诞
生了无数新思想和新产品。虽然这是一本技术书籍，不过这里我想聊聊关于可观测性
的意义和一些更接近根源的东西。
有记载的最早的望远镜概念可追溯到 1608 年 10 月，荷兰一位名叫 Hans Lippershey
的眼镜商人提交的一份专利，其中描述了一种能将远处的东西放大的装置，距今已经
400 多年。这 400 多年是人类科学突飞猛进的时期，望远镜就像眼睛一样，让我们得
以看清宇宙和万物，也因此成为科学中最重要的仪器之一。从第一台望远镜诞生到现
在，我们拥有了各种各样的望远镜：对宏观世界，有玩具双目望远镜到哈勃太空望远
镜；对微观世界，有显微镜到 LHC。科学史从某个角度来说是一部望远镜的进化史，
一部可观测性技术的进化史，也是一部我们对客观世界的理解不断深入的历史。
将不可见的世界变成可见是我们理解客观世界运行规律的重要方式，因为不管你看不
看和相不相信，这个世界就在此处不由分说地运转着。说回软件世界，我于 20 世纪
90 年代进入 IT 行业，当时的软件系统还都比较简单，大多都是单机系统，对于可观
测性的理解基本在于日志和基于源码或者二进制的软件调试技术。从单机的维度来说，
这基本已经足够了。但是随着 2000 年后互联网行业的崛起，分布式系统开始登上舞
台，在早期的简单分布式系统中，可观测性并没有得到足够的重视，依旧延续着单机
系统的思路：出了问题查询一下日志就好了！这在很长时间也相安无事。但是后来随 ...
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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.