title: What is the maximum number of topics that a MQTT broker can handle?
body: <p>I am using the node.js mosca MQTT broker for some internet of things (iot) application.</p>
  
  <p><a href="https://github.com/mcollina/mosca" rel="nofollow">https://github.com/mcollina/mosca</a></p>
  
  <p>What is the maximum number of topics that a MQTT broker, specifically mosca, can handle? </p>
  
  <p>If I want to increase the number of allowed topics, is there a configuration parameter I can modify or which part of the code can I change?</p>