November 2022
Beginner to intermediate
346 pages
11h
Chinese
Content preview from Kafka权威指南（第2版）
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225
第 12章
管理
Kafka
管理
Kafka
集群意味着需要使用额外的工具对主题、配置等做出修改。
Kafka
提供了一些
命令行工具，以用于对集群做出变更。这些工具使用
Java
类
实现，
Kafka
提供了一些脚本
来调用它们。不过，这些工具只提供了基本的功能，无法完成复杂的操作，难以被用于管
理大规模的集群。本章只介绍
Kafka
项目提供的基础工具
。
Kafka
社区也开发了很多高级
工具，虽然不属于
Kafka
核心项目，但是可以在
Kafka
网站上找到它们。
操作授权
虽然
Kafka
为主题操作提供了身份验证和授权机制
，但默认配置并没有对
这些工具的使用进行严格的限制。也就是说，不需要经过身份验证也可以
使用这些工具，并可以在没有安全检查和审计的情况下执行诸如修改主题
之类的操作。为防止发生未经授权的变更，需要确保只有管理员可以使用
这些工具。
12.1
主题操作
可以用
kafka-topics.sh
执行大部分与主题相关的操作。可以用它创建、修改、删除和查
看主题。虽然这个工具也可用于配置主题的一些参数，但现在已被弃用，建议使用更健
壮的
kafka-config.sh
来配置主题参数。要使用
kafka-topics.sh
，需要通过
--bootstrap-
server
参数来指定集群的连接串和端口。下面的例子中使用的是本地
Kafka
集群，所以连
接串是
localhost:9092
。
本章假设所有工具都位于
/usr/local/kafka/bin/
目录
。本节示例中的命令都假设这个目录为
当前工作目录，或者这个目录已经被添加到
$PATH ...
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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.