January 2018
Beginner to intermediate
234 pages
7h 8m
Chinese
Content preview from Kafka权威指南
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跨集群数据镜像
｜
129
MirrorMaker
相关信息
MirrorMaker
看起来很简单，不过出于对效率的考虑，以及尽可能地做到仅一
次传递，它的实现并不容易。截止到
Kafka 0.10.0.0
版本，
MirrorMaker
已经被
重写了
4
次，而且在未来有可能会进行更多的重写。这里所描述的以及后续章
节将提及的
MirrorMaker
相关细节都基于
0.9.0.0
到
0.10.2.0
之间的版本。
8.3.1
如何配置
MirrorMaker
是高度可配置的。首先，它使用了一个生产者和多个消费者，所以生产者和
消费者的相关配置参数都可以用于配置
MirrorMaker
。另外，
MirrorMaker
本身也有一些配
置参数，这些配置参数之间有时候会有比较复杂的依赖关系。下面将举一些例子，并着重
说明一些重要的配置参数。不过，
MirrorMaker
的详细文档不在本书的讨论范围之内。
先来看一个
MirrorMaker
的例子：
bin/kafka-mirror-maker --consumer.config etc/kafka/consumer.properties --
producer.config etc/kafka/producer.properties --new.consumer --num.streams=2 --
whitelist ".*"
接下来分别说明
MirrorMaker
的基本命令行参数。
consumer.config
该参数用于指定消费者的配置文件。所有的消费者将共用这个配置，也就是说，只能配
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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.