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IoTEF: A Federated Edge-Cloud Architecture for Fault-Tolerant IoT Applications
Aalto University.
University of Luxembourg.
University of Helsinki.
Umeå University, Faculty of Science and Technology, Department of Computing Science.ORCID iD: 0000-0002-8078-5172
2020 (English)In: Journal of Grid Computing, ISSN 1570-7873, E-ISSN 1572-9184Article in journal (Refereed) Epub ahead of print
Abstract [en]

The evolution of Internet of Things (IoT) technology has led to an increased emphasis on edge computing for Cyber-Physical Systems (CPS), in which applications rely on processing data closer to the data sources, and sharing the results across heterogeneous clusters. This has simplified the data exchanges between IoT/CPS systems, the cloud, and the edge for managing low latency, minimal band- width, and fault-tolerant applications. Nonetheless, many of these applications administer data collec- tion on the edge and offer data analytic and storage 

capabilities in the cloud. This raises the problem of separate software stacks between the edge and the cloud with no unified fault-tolerant management, hin- dering dynamic relocation of data processing. In such systems, the data must also be preserved from being corrupted or duplicated in the case of intermittent long-distance network connectivity issues, malicious harming of edge devices, or other hostile environ- ments. Within this context, the contributions of this paper are threefold: (i) to propose a new Internet of Things Edge-Cloud Federation (IoTEF) architec- ture for multi-cluster IoT applications by adapting our earlier Cloud and Edge Fault-Tolerant IoT (CEFIoT) layered design. We address the fault tolerance issue by employing the Apache Kafka publish/subscribe platform as the unified data replication solution. We also deploy Kubernetes for fault-tolerant manage- ment, combined with the federated scheme, offering a single management interface and allowing automatic reconfiguration of the data processing pipeline, (ii) to formulate functional and non-functional requirements of our proposed solution by comparing several IoT architectures, and (iii) to implement a smart build- ings use case of the ongoing Otaniemi3D project as proof-of-concept for assessing IoTEF capabilities. The experimental results conclude that the architec- ture minimizes latency, saves network bandwidth, and handles both hardware and network connectivity based failures.

Place, publisher, year, edition, pages
Springer, 2020.
Keywords [en]
Internet of Things, Distributed systems, Edge, Cloud, Microservice, Containers, Smart buildings, Kubernetes, Kafka
National Category
Software Engineering
Research subject
Computer Systems
Identifiers
URN: urn:nbn:se:umu:diva-167210DOI: 10.1007/s10723-019-09498-8OAI: oai:DiVA.org:umu-167210DiVA, id: diva2:1384971
Funder
Wallenberg AI, Autonomous Systems and Software Program (WASP), 570011220Available from: 2020-01-13 Created: 2020-01-13 Last updated: 2020-01-14

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Främling, Kary

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