initiate a client connection clean_session=false

[Biswajeeban]

The problem occurs while stress testing some brokers like Bevywise MQTT Route and HiveMq as they support only 25 clients to be connected in their evaluation versions.

MQTT Route keeps a client connection count which works based on the Clean Session. Hence what happens while connecting to the Broker Server(using MQTT Stresser) the second connection request from the same client​ ​(MQTT Stresser ) to publish/subscribe some msgs is being treated as a New client and client counter gets increased by 1 and thus exceeds 25.

If we could initiate a client connection to the MQTTRoute setting the Clean session as false ( 0 ), It will treats the second connection request with the same unique Client ID as a re-connection and will not increase the connected client count and I can conduct some fare stress test keeping all the testing parameters constant for all the brokers that I put for evaluation of performace.

[invadersmustdie]

@bechtoldt any thoughts on this?

[arnisoph]

sure, there's an option to set CleanSession to false. we would just have to make it configurable while keeping "true" as default and make all MQTT client IDs (WorkerId) the same.