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http://dx.doi.org/10.9708/jksci.2022.27.02.125

Extending the BR2K technique to enhance the robustness of blockchain application services  

Kwon, Min-Ho (Dept. of Electrical/Electronic and Computer Engineering, University of Ulsan)
Lee, Myung-Joon (Dept. of Electrical/Electronic and Computer Engineering, University of Ulsan)
Publication Information
Journal of the Korea Society of Computer and Information / v.27, no.2, 2022 , pp. 125-134 More about this Journal
Abstract
In this paper, we propose an extension method of the BR2K technique for enhancing the robustness of blockchain application services. The BR2K (Blockchain application, Replication & Recovery technique using Kubernetes) technique was recently developed to support the robustness of blockchain services through service replication and rapid restart. The proposed technique extends the existing BR2K technique to provide a state version, which is meta-information about the service state, and a method for safely managing it, and use the state version to determine the timing for service state recovery. Also, the technique provides systematic service state backup for service recovery and joining of new service nodes by utilizing the version information and the service registry which acts as a service recovery center in the BR2K technique. Based on this, it is possible to support new service nodes to join the replication service with consistency. As a result, new service nodes can be quickly added to the BR2K service in operation, enhancing the robustness of the BR2K service. In addition, the extended method is applied to the pilot blockchain application service and tested in a Kubernetes environment composed of virtual machines to confirm the validity of service replication consistency and rapid service recovery in the event of node failures.
Keywords
Blockchain Service; Service Robustness; Service Replication; Service Recovery; BR2K;
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Times Cited By KSCI : 1  (Citation Analysis)
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