Adaptable Replication Scheme for Availability and Reliability in a Distributed Object-Oriented Computing Environment (マルチメディア通信と分散処理電子化知的財産・社会基盤合同研究報告)

概要

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Distributed object-oriented systems tend to evolve steadily influenced by its own requirements. Adaptability enables objects to change its respective behaviour on the fly to fulfill the current requirements of the system. As an alternative to leverage the availability and reliability characteristics, we propose an adaptable replication scheme that enables an object to adapt itself to provide a replicated service, and a replicated object to choose the replication strategy that best fits to achieve its requirements. The adaptable replication framework encapsulates the details of replication and communication which comprises a group membership service, reliable message delivery service and message ordering service to comply with the consistency of the replication protocol. The adaptive replication scheme permits replacement of down replicas, or change of the number of replicas when partial failures occur and chooses the most adequate consistency protocol for the current configuration. clients to the recently adapted objects for replication should take actions that enables then to obtain a thourough service of the replicated object. The adaptable replication scheme is being designed as part of the Juice system.
一般社団法人情報処理学会の論文
2002-09-12