DESIGN AND IMPLEMENTATION OF MOONY - A FAULT-TOLERANT DISTRIBUTED SHARED-MEMORY SYSTEM

Shared memory is a natural high level programming paradigm in particul ar in distributed computing environments. In this paper, we describe t he design and implementation of a fault-tolerant distributed shared me mory system (FTDSM) called Moony,which provides shaved memory abstract ion and guarantees continuous services even in the presence of site cr ashes. Moony is implemented at application level with a set of daemon sewers and provides services to users via Moony library function calls . The first prototype is portable to all Unix machines that support BS D socket and System V IPC. The preliminary results demonstrate that FT DSM is viable and, that Moony is portable over a wide variety of distr ibuted environments.