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Editor to share with you how to monitor Kafka, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

First of all, from the principle, kafka data statistics is generally said to be collected by a tool called metrics. Metrics is a java class library that allows you to monitor your code in the generation environment. For example, if you use java to make a website, it can help you count the number of requests processed per second and other data. In kafka, metrics is widely used to do all kinds of performance statistics. The official website of metrics is http://metrics.codahale.com/. Students who want to use metrics can take a look, there are detailed documents. Of course, the monitoring kafka we are talking about today does not need to know much about metrics. Metrics provides an interface to view data externally in the form of JMX, so we first need to specify the port of jmx when kafka starts, and then connect to it through an off-the-shelf visualization tool (visualvm).

1. When kafka starts, specify the port of jmx to cut to the bin directory of kafka, and execute the following command

JMX_PORT=9999. / kafka-server-start.sh.. / config/server.properties &

This starts kafka. There is only one more JMX_PORT=9999 than usual.

Download visualvm, the official website is http://visualvm.java.net/ visualvm is a good java diagnosis, testing tools, open source, as well as the Chinese version. After downloading, you need to install the MBeans plug-in. Click tools > > plug-in in visualvm and you can install it.

3. Then you can connect and have a graphical interface, so I won't introduce it in detail here.

The above is all the contents of the article "how to monitor Kafka". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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