Optimization of MQTT Communication Between Microservices in the IoT Cloud

Number of devices being connected to the Internet is increasing at an incredible rate forming the Internet of things (IoT). IoT cloud gathers data from physical devices, processes it and shares among IoT system components. To ensure the quality of service, cloud architecture has to be fault-tolerant. In this paper, we presented a highly available, fault-tolerant microservice cloud architecture, where services are communicating via MQTT (Message Queuing Telemetry Transport) protocol. The main focus of the research is to optimize communication between cloud microservices. Thus, we propose the message routing algorithm, which we will refer to as a balanced forwarding algorithm.