Method and system to maintain strong consistency of distributed replicated contents in a client/server system

Method and system to maintain strong consistency of distributed replicated contents in a client/server system

A method and a system for maintaining consistency of replicated files distributed over a plurality of independent processing slave nodes (210, 210', 210") part of an application tier of a multi-tier client/server data processing system are described. The replicated files are distributed fr...

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Hauptverfasser: AMAR VIRGINIE, LAFONT CAROLINE, TOUFFAIT GUILLAUME, DEFAYET CHRISTOPHE, COLLENDAVELLOO YAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator AMAR VIRGINIE
LAFONT CAROLINE
TOUFFAIT GUILLAUME
DEFAYET CHRISTOPHE
COLLENDAVELLOO YAN
description A method and a system for maintaining consistency of replicated files distributed over a plurality of independent processing slave nodes (210, 210', 210") part of an application tier of a multi-tier client/server data processing system are described. The replicated files are distributed from a master node of a master tier. Upon reception of an update request (142) to update a master database, a new version of a replicated file is first generated and stored in a shared file system (160). Then, a notification of availability of the new version is forwarded to a synchronizing slave node and, from there, broadcasted to all slave nodes (210, 210', 210"). Each slave node preloads the new version (150) of the replicated file from the shared file system (160) and acknowledges successful completion. Upon reception of all acknowledgments in the synchronization slave node, a notification of preloading achievement is forwarded to the master server (112) which updates the master database thus committing the use of the new
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Method and system to maintain strong consistency of distributed replicated contents in a client/server system
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