Conflictless replication in a multi-master directory system

Details Conflictless replication in a multi-master directory system Conflictless replication in a multi-master directory system

2004-04-30

2008-03-04

Alam, Shahid A (Department: 2162)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000, C715S252000

Reexamination Certificate

active

07340488

ABSTRACT:
A directory server system may include master servers and a non-master server, each server storing directory server data that includes updates, each update having a creation time. The master servers exchange replicate updates through update communications. Each master server may include an update state builder for maintaining local update state items including an estimate time indication related to update communications received by the local master server about the directory server data stored by the designated master server. A master server may also include an upper time builder for evaluating an upper time value that is the earliest one of the estimate time indications in the local update state items. A master server may also include a master-to-non-master replicate function, for sending to the non-master server the updates in the local directory server data which have an associated creation time no later than the upper time value.

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