检查系统是否连接到Kafka

本文介绍了检查系统是否连接到Kafka的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

限时送ChatGPT账号..

我需要用 Java 编写一个冒烟测试来验证系统是否连接到 kafka，

I need to write a smoke test in Java which validates whether the system is connected to kafka,

有人知道吗?我找到了这个帖子:

Does anyone have any idea? I have found this post:

如何检查Kafka Server是否正在运行?

但是从 Java 代码做起来太复杂了，我不认为这是我应该使用的方向.

But it's too complicated to do from a Java code and I don't think It's the direction i should use.

提前致谢.

推荐答案

我有同样的问题，我不想在没有任何答案的情况下离开这个问题.我阅读了很多关于如何检查连接的信息，我找到的大部分答案都是检查与 Zk 的连接，但我真的很想直接检查与 Kafka 服务器的连接.

I had the same question and I don't want to leave this question without any answer. I read a lot about how I can check the connection and most of the answers I found was checking the connection with Zk, but I really want to check the connection directly with Kafka server.

我所做的是创建一个简单的 KafkaConsumer 并使用 listTopics() 列出所有主题.如果连接成功，那么您将获得一些回报.否则，您将收到 TimeoutException.

What I did is to create a simple KafkaConsumer and list all the topics with listTopics(). If the connection is success, then you will get something as a return. Otherwise, you will get a TimeoutException.

  def validateKafkaConnection(kafkaParams : mutable.Map[String, Object]) : Unit = {
    val props = new Properties()
    props.put("bootstrap.servers", kafkaParams.get("bootstrap.servers").get.toString)
    props.put("group.id", kafkaParams.get("group.id").get.toString)
    props.put("key.deserializer", "org.apache.kafkamon.serialization.StringDeserializer")
    props.put("value.deserializer", "org.apache.kafkamon.serialization.StringDeserializer")
    val simpleConsumer = new KafkaConsumer[String, String](props)
    simpleConsumer.listTopics()
  }

然后你可以把这个方法包装在一个try-catch语句中来捕获异常.

then you can wrap this method in a try-catch sentence to catch the exception.

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