Structuring Fault-Tolerant Object Systems for Modularity in a Distributed Environment
IEEE Transactions on Parallel and Distributed Systems
Architectural Support for Mobile Objects in Large-Scale Distributed Systems
IWOOOS '95 Proceedings of the 4th International Workshop on Object-Orientation in Operating Systems
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Shadows is a simple, but flexible, architecture based upon only three key concepts: object servers, object migration and location-transparent operation invocation. We show how several powerful object properties such as object caching, object shareability, and persistence can easily be created by exploiting only these three concepts. The Shadows architecture requires only capabilities found in common object-oriented languages and modern operating systems. An instance of the Shadows architecture has been implemented in C++ on a distributed memory multiprocessor system.