iBASE/Cluster는 한국전자통신연구원에서 개발한 객체 지향 멀티미디어 DBMS인 바다-IV를 기반으로 공유 디스크 기반의 클러스터 환경에서 무정지 DBMS 서비스를 지원하기 위하여 확장된 DBMS 이다. 본 논문에서는 이를 위하여 수행된 바다-IV 의 확장에 대해 기술한다. 기술된 내용은 공유 디스크 자원 접근을 동기화 하기 위한 동시성 제어 기법 및 버퍼 관리 기법, 그리고 특정 노드에 고장 발생 시 회복 기법 등에 대한 확장을 포함한다. 또한 확장된 DBMS가 LVS(Linux Virtual Server) 기반의 클러스터에서 자동적인 고장의 감지 및 이전(fail-over)을 수행하기 위한 연동 구조를 다루고 동작 시나리오를 통하여 구현된 시스템의 흐름을 보인다.
KSP Keywords
Linux Virtual Server(LVS)
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