An Elasticity Framework for Distributed Message Queuing Telemetry Transport Brokers

Abstract

Internet of Things (IoT) applications are increasingly making impact in all areas of humanlife. Day by day, its chatty embedded devices have been generating tons of data requiring effectivenetwork infrastructure. To deliver millions of IoT messages back and fort with as few faults aspossible, participation of communication protocols like MQTT is a must. Lightweight blueprintand friendly battery are just two of many advantages of this protocol making it become a dominantin IoT world. In real application scenarios, distributed MQTT solutions are usually required sincecentralized MQTT approach is incapable of dealing with huge amount of data. Although distributedMQTT solutions are scalable, they do not adapt to fluctuations of traffic workload. This might costIoT service provider because of redundant computation resources. This leads to the need of a novelapproach that can adapt its size changes in workload. This article proposes such an elastic solutionby proposing a flexible MQTT framework. Our MQTT framework uses off-the-shelf componentsto obtain server’s elasticity while keeping IoT applications intact. Experiments are conducted tovalidate elasticity function provided by an implementation of our framework.
 Keywords
 MQTT broker, Elasticity, Internet of Things, Cloud computing
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