Method and system for using a sync key

Details Method and system for using a sync key Method and system for using a sync key

2005-10-04

2005-10-04

Kindred, Alford (Department: 2161)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

06952708

ABSTRACT:
A method and system for synchronization of data stores is described. A synchronization initiator sends a sync key to a synchronization partner requesting to synchronize to some checkpoint. An integer is used as the sync key. When the sent sync key is zero the synchronization partner performs an initial synchronization. When the sent sync key is a value other than zero, the synchronization partner attempts to synchronize to the desired state. The value of the sync key is incremented only upon successful synchronization. A sync server can also include a sync key with change update notifications sent to a sync client, which the client can use to determine if the update notification is a valid update from the current sync state or is a delayed and obsolete update that should be discarded.

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Per Cederqvist et al., “Version Management with CVS for CVS 1.11.2”, Version Management with CVS, Online pp. 1-6 and 33-50, Retrieved on Oct. 28, 2002.

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