Replication management in large networks
نویسندگان
چکیده
The replication of data objects in a large computer network is a diicult task which cannot be approached by simply employing the techniques used in small networks , because the high replication factors possible raise new issues which must be addressed. In this paper , we present a solution to the problem of managing replicas in a large scale environment. The solution is based on a multi{level quorum algorithm for maintaining the consistency of replicas, a probabilistic addressing mechanism for eeciently locating replicas in the system and an eecient scheme for handling dynamic changes in the number of replicas. The feasibility of our approach is demonstrated by presenting performance measurements in a simulated network.
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