January 2018
Beginner to intermediate
234 pages
7h 8m
Chinese
Content preview from Kafka权威指南
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监控
Kafka
｜
183
10.5
端到端监控
我们推荐使用的另一种外部监控系统是端到端的监控系统，它为
Kafka
集群的健康状态提
供了一种客户端视图。消费者和生产者客户端有一些度量指标能够说明集群可能出现了
问题，但这里有猜想的成分，因为延时的增加有可能是由客户端、网络或
Kafka
本身引起
的。另外，用户原本的工作可能只是管理
Kafka
集群，但现在也需要监控客户端。现在只
需要回答以下两个简单的问题。
•
可以向
Kafka
集群生成消息吗？
•
可以从
Kafka
集群读取消息吗？
理想情况下，用户可能会希望每一个主题都允许这些操作，但要为此向每一个主题注入人
为的流量是不合理的。所以，可以考虑是否每个
broker
都允许这些操作，而这正是
Kafka
Monitor
要做的事情。该工具由
LinkedIn
的
Kafka
团队开发并开源，它持续地向一个横跨
集群所有
broker
的主题生成消息，并读取这些消息。它对每个
broker
的生产请求和读取请
求的可用性进行度量，包括从生产到读取的整体延时。这种类型的监控对于验证
Kafka
集
群的运行状态来说是非常有价值的，因为
Kafka broker
本身无法告知客户端是否能够正常
使用集群。
10.6
总结
监控是运行
Kafka
的一个重要组成部分，这也是为什么有那么多的团队在这上面花费了那
么多时间。很多组织使用
Kafka
处理千万亿字节级别的数据流。确保数据的持续性和不丢
失消息是一个关键性的业务需求。作为
Kafka
集群的运维人员，我们的目标是成为最了解
集群状态的人。同时，要协助用户监控他们的应用程序。 ...
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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.
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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.