Cache Coherence and Storage Management in a Persistent Object System

B Koch, T Schunke, Alan Dearle, F Vaughan, C Marlin, Ruth Fazakerley, C Barter

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A distributed architecture for the support of programs written in the persistent programming language Napier is described. The architecture consists of a central server containing the stable persistent store and a collection of clients, each executing Napier processes. Since each client has a cache of objects, some of which may be shared with other clients, a protocol is required to ensure that the caches are coherent and that any access of an object will be to the most up-to- date copy. This architecture is explicated by following the lifecycle of an object from its ‘birth’ inside a client, through its life in the persistent store and its migration into other clients. Using this vehicle, the coherency protocol and client/server architecture are illustrated and explained.
Original languageEnglish
Title of host publicationProceedings of the 4th International Workshop on Persistent Object Systems (POS4)
Subtitle of host publicationImplementing Persistent Object Bases
EditorsA Dearle, G Shaw, SB Zdonik
PublisherMorgan Kaufmann
ISBN (Print)1-55860-168-6
Publication statusPublished - 1990


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