November 2022
Beginner to intermediate
346 pages
11h
Chinese
Content preview from Kafka权威指南（第2版）
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第
1
版序
这是一个激动人心的时刻，成千上万家企业正在使用
Kafka
，其中就包括超过三分之一的
《财富》世界
500
强公司。
Kafka
是成长最快的开源项目之一
，它的生态系统也在蓬勃发
展。
Kafka
正在成为流式数据的管理和处理利器。
Kafka
从何而来？为什么要开发
Kafka
？
Kafka
到底是什么？
Kafka
最初是
LinkedIn
的一个内部基础设施系统。我们发现
，虽然有很多数据库和系统可
以用来
存储
数据，但在我们的架构里，刚好缺一个可以处理持续
数据流
的组件。在开发
Kafka
之前，我们实验了各种现成的解决方案
，从消息系统到日志聚合系统，再到
ETL
工
具，它们都无法满足需求。
最后，我们决定从头开发一个系统。我们不想只是开发能够存储数据的系统（比如传统的
关系数据库、键
–
值存储引擎、搜索引擎或缓存系统）
，而是希望能够把数据看成持续变
化和增长的流，并基于这样的想法构建出一个数据系统，或是一种数据架构。
这个想法的适用范围比我们最初预想的更广。
Kafka
一开始被用在社交网络的实时应用程
序和数据流中，现在已经成为下一代数据架构的基础。大型零售商正在基于持续数据流改
造它们的基础业务流程，汽车公司正在收集和处理来自互联网汽车的实时数据流，银行也
正在重新思考如何基于
Kafka
改造它们的基础流程和系统。
那么，
Kafka
在这当中充当了怎样的角色？它与现有的系统又有哪些区别？
我们认为
Kafka
是一个
流式平台
：你可以在这个平台上发布和订阅数据流，并保存和处理
它们，这就是构建
Kafka
的初衷
。以这种方式看待数据可能与人们已有的习惯有所不同 ...
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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.