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Developing MQTT broker [message #1841874]

Tue, 01 June 2021 12:47

Eclipse User

Hi mates, recently I have been making some test on mosquito and I Only could reach about 2000 clients, what I need is around 25,000, so my question is if a mosquito has some kind of limit about clients connections or it depends on the machine that I have installed my broker?
thanks for your time and have a nice day.

Re: Developing MQTT broker [message #1841923 is a reply to message #1841874]

Thu, 03 June 2021 12:05

Eclipse User

With freeware you get what you pay for. Since mosquitto is single-threaded, your performance will suffer. It will not get you much higher than
2000 simultaneous connections (depending on exact requirements).
For 25k, you'll want a commercial broker like IBM MessageSight, HiveMQ, EMQX, Solace, VerneMQ, or a dozen more if you google it.
All we do is simulation for performance testing, see eg. https://gambitcomm.blogspot.com/2019/01/200000-mqtt-connections-to-ibm.html

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