Data handover on a peer-to-peer system

This paper presents the DHO API and its integration into apeer-to-peer Grid architecture. It provides an efficientmanagement of critical data resources in an extensible distributedsetting consisting of a set of peers that may join or leave the system.Locking and mapping of such a resource are handled transparently forusers: they may access them through simple function calls.On the lowest level of the proposed architecture the Exclusive Locksfor Mobile Processes ELMP algorithm ensures data consistencyand guarantees the logical order of requests.All operations in our architecture have an amortized cost of O(logn). An experimental assessment validates the practicality of ourproposal