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Design and Implementation of a Message-Based Regional Telemedicine System to Achieve High Availability and Scalability.

Design and Implementation of a Message-Based Regional Telemedicine System to Achieve High Availability and Scalability.

Design and Implementation of a Message-Based Regional Telemedicine System to Achieve High Availability and Scalability.

Telemed J E Health. 2018 May 31;:

Authors: Ren X, Wang Z, Wu Y, Li Y, Chen M, Zhai Y, Li Y

Abstract
BACKGROUND: Different levels of telemedicine systems have been built across China. To share high-quality medical resources and conduct centralized management of telemedicine systems, a regional telemedicine system (RTS) (such as a provincial level system) has been developed to integrate with small-scale telemedicine systems. Although the established systems offer integration services, they are tightly coupled systems, and not easily integrated with new systems. Meanwhile, with the increasing of input/output, it is difficult for them to run with high scalability, considering the cost of architecture redesign and further development. This article presents the design and implementation of regional integration system through a study in Henan, China, mainly aimed to integrate with heterogeneous small-scale telemedicine systems and provide high efficiency.
METHODS: A provincial telemedicine system and some city-level telemedicine systems have already been established. The provincial system has been built to act as a regional integration system to connect city-level systems. Adopting message-based technology, the provincial system achieves high availability and high scalability, respectively, through LevelDB + ZooKeeper and multicast.
RESULTS: The system achieved the centralized management of established telemedicine systems without restructuring their framework, improving high availability of RTS when one ActiveMQ service node in a group failed, and it did not negatively influence normal business logic when adding a new service node. At the same time, two "Master" state ActiveMQ service nodes provided services simultaneously, which enable the RTS to achieve high scalability.
CONCLUSIONS: The message-based regional integration system enriched the RTS with high availability, easy extensibility, and provided a convenient way to integrate new small-scale telemedicine systems.

PMID: 29851364 [PubMed - as supplied by publisher]

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