Data processing: database and file management or data structures – Database design – Data structure types
Patent
1995-09-25
1999-11-02
Harrell, Robert B.
Data processing: database and file management or data structures
Database design
Data structure types
G06F 1730
Patent
active
059788135
ABSTRACT:
A database synchronization system for synchronizing a plurality of local databases in a plurality of distributed computing systems is disclosed. The plurality of distributed computing systems form a distributed computing environment (DCE). The synchronization system includes a system server, a registry database, coupled to the system server, a local area network (LAN) synchronization server, coupled to the system server, a LAN server synchronization library, coupled to the system server, and a LAN server, coupled to the LAN synchronization server and selected ones of the plurality distributed computing systems forming a LAN. Synchronization between the LAN and the DCE registry occurs when registry modifications in the registry database affecting at least one of the plurality of local LAN databases invokes the LAN server synchronization library to synchronize the affected database. The synchronization system utilizes a registry database coupled to each of the local databases. A primary replica is coupled to the registry database that synchronizes each local database within the DCE with the registry database. A secondary replica is then coupled to the primary replica, that synchronizes at least one local area network (LAN) server that includes selected ones of the plurality of computing systems and their respective databases with the registry database.
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Understanding DCE, 1992, W. Rosenberry et al., Chapter 1, "DCE: The Network as Computer".
Understanding DCE, 1992, W. Rosenberry et al., Chapter 5, "DCE Security Service: Protecting Resources".
Foltz Richard C.
Lin Sy Long
Meegan John Vincent
Wadood Syed Abdul
Coulter Kenneth R.
Dillon Andrew J.
Harrell Robert B.
International Business Machines - Corporation
LaBaw Jeffrey S.
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