title: What is entity-name and entity-type in Apache Kafka?
body: <p>I'm recently learning Apache Kafka. In the quick start tutorial, I found the following command:</p>
  
  <pre><code>bin/kafka-configs.sh  --zookeeper localhost:2181 --alter --add-config 'producer_byte_rate=1024,consumer_byte_rate=2048' --entity-name clientA --entity-type clients
  </code></pre>
  
  <p>But I can't find the explanation of these two required parameters: "entity-name" and "entity-type" in the documentation. Could someone elaborate what these are for? Where can I set it?</p>