The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 08, 2007

Filed:

Jul. 29, 2003
Applicants:

Yunxin Wu, Kirkland, WA (US);

Shaoyu Zhou, Issaquah, WA (US);

Lev Novik, Bellevue, WA (US);

Irena Hudis, Bellevue, WA (US);

Ashish B. Shah, Sammamish, WA (US);

Inventors:

Yunxin Wu, Kirkland, WA (US);

Shaoyu Zhou, Issaquah, WA (US);

Lev Novik, Bellevue, WA (US);

Irena Hudis, Bellevue, WA (US);

Ashish B. Shah, Sammamish, WA (US);

Assignee:

Microsoft Corporation, Redmond, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems, methods, and computer program products for synchronizing items at replicas within a topology is disclosed. Items are stored in physical tables at the replicas. The physical table layouts at each replica can differ but are mapped to a common logical view. When a replica receives an indication that synchronization should be performed, the replica determines if changes have been made at the replica that should be mapped to the logical views. Replicas can facilitate this by comparing local change enumerations for changes made in physical tables to synchronization local change enumerations for changes in the logical views. Any changes that need to be synchronized are sent through the logical views to other replicas in the topology.


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