Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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BR2K: A Replication and Recovery Technique Using Kubernetes for Blockchain 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)
  • Received : 2020.09.16
  • Accepted : 2020.10.12
  • Published : 2020.10.30
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Abstract

In this paper, we propose a technique for blockchain service replication and recovery using kubernetes(BR2K) that robustly executes blockchain services based on replication and supports systematic recovery in case of the service failure. Blockchain services are being developed and applied in various fields such as administration, finance, and medical systems based on the features of blockchain, such as decentralization, high security, and data integrity. In such areas where service continuity is important, it is necessary to provide robustness for execution of blockchain services, and a recovery plan for service failure is also required. To this end, BR2K provides an execution replication technique that systematically supports the sustainable execution of blockchain application services. Also, it introduces a robust container registry based on the blockchain service registry, systematically supporting the recovery of service failures by using it. In addition, Truffle, a blockchain service development framework, is extended to utilize the Kubernetes container management tool, and BR2K provides a technique for rapidly deploying blockchain services using the extended framwork.

본 논문에서는 블록체인 응용서비스를 견고하게 실행하고, 이의 실패 시 체계적인 복구를 지원하는 BR2K(Blockchain application, Replication & Recovery technique using Kubernetes)기법을 제안한다. 블록체인 서비스는 블록체인의 특징인 탈중앙화, 높은 보안성, 그리고 데이터 무결성 등을 기반으로 행정, 금융, 그리고 의료 시스템 같은 다양한 분야에서 개발 및 적용되고 있다. 따라서 이와 같이 서비스의 연속성이 중요한 분야에서 블록체인 서비스 실행에 대한 견고성이 제공하는 것이 필요하며, 서비스 실패에 대한 복구 방안 또한 필요한 실정이다. 이를 위하여, BR2K는 블록체인 응용서비스의 지속 가능한 실행을 체계적으로 지원하는 실행 복제 기법을 제공한다. 또한, 블록체인 서비스 레지스트리 기반의 견고한 컨테이너 레지스트리를 소개하고 이를 이용하여 서비스 실패에 대한 복구를 체계적으로 지원한다. 더불어, 블록체인 서비스 개발 프레임워크인 트러플을 쿠버네티스 컨테이너 관리 도구를 활용할 수 있도록 확장하고, 이를 바탕으로 서비스를 신속하게 배포하는 기법을 제공한다.

Keywords

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