Number of topics in a single node

Hi There,

I want to know is there any limitation in creating the number of topics using HiveMQ Enterprise Edition? If yes, what is the maximum number of topic one can create.

Also want to know how many topics can single node MQTT HiveMQ broker can handle? The node will be of 8 cores and 16 GB RAM.

Thanks & Regards,

Hi @vgkkonda,

there is no internal limit how many topics you can create.
In the end the limiting factor is the heap you are giving the HiveMQ instance.

Other factors are:

  • how big are the topics, you will be able to store more 10 character topics as 1000 character topics
  • what other things need heap also (publishing messages, connection attributes, sessions, etc.)

Michael from the HiveMQ team