서지주요정보
분할된 네트워크상에서의 가용성 향상을 위한 데이타 중복 기법 = A data replication method for improving availability in partitioned networks
서명 / 저자 분할된 네트워크상에서의 가용성 향상을 위한 데이타 중복 기법 = A data replication method for improving availability in partitioned networks / 박창섭.
저자명 박창섭 ; Park, Chang-Sup
발행사항 [대전 : 한국과학기술원, 1997].
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등록번호

8007837

소장위치/청구기호

학술문화관(문화관) 보존서고

MCS 97019

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9003333

소장위치/청구기호

서울 학위논문 서가

MCS 97019 c. 2

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초록정보

Data replication is employed in distributed database systems to enhance data availability and performance. However, the benefit of data replication is only realized at the cost of maintaining the consistency of data. In particular, network partition failures in distributed systems make it more difficult to achieve high data availability while ensuring strong correctness criteria such as 1SR. In this thesis, we propose a data replication method to improve the availability of data in the presence of network partition failures by using the relaxed correctness criteria, which is called insular consistency. Our method adopts and extends the traditional primary copy method for large-scale distributed systems, where partition failures frequently occur. An asynchronous update propagation mechanism is also employed to improve the performance of update operations. We focus on increasing the availability of data for two particular classes of transactions. One is the read-only transactions which are allowed to read old values, and the other is the update transactions whose write operations are all blind-writes. In our method, a mechanism is presented that makes these transactions to be executed at any partition as long as insular consistency is satisfied. We show that our mechanism guarantees the correctness criteria.

서지기타정보

서지기타정보
청구기호 {MCS 97019
형태사항 ii, 41 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chang-Sup Park
지도교수의 한글표기 : 이윤준
지도교수의 영문표기 : Yoon-Joon Lee
학위논문 학위논문(석사) - 한국과학기술원 : 전산학과,
서지주기 참고문헌 : p. 38-41
주제 데이타 중복
읽기 전용 트랜잭션
고립적 일관성
버젼 벡터
Data replication
Read-only transaction
Insular consistency
Version vector
QR CODE qr code