Boots – shoes – and leggings
Patent
1985-11-26
1987-12-22
Zache, Raulfe B.
Boots, shoes, and leggings
G06F 900
Patent
active
047149965
ABSTRACT:
In a distributed processing system having a source node accessing data objects from a database and a replica node storing replicas of requested source data objects received from the source location, the impact to replicas caused by a change in a source data object is calculated by assigning a version number to the change. An identifier of the portion of the source database affected by the change is generated, as well as a list of replicas containing objects from the affected portion of the database. For a replica location communicating with the source location, a table of the replicas from the list is then recorded along with the version number for communicating to the replica location.
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IEEE Transactions on Computers, vol. C-34, No. 6, Jun. 1985, "The Exclusive-Writer Approach to Updating Replicated Files in Distributed Processing Systems", by Chu et al.
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Gladney Henry M.
Lorch Douglas J.
Mattson Richard L.
Haynes Mark A.
International Business Machines - Corporation
Lee Simon K.
Zache Raulfe B.
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