Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Arnar Mar Hrafnkelsson0
Michal Cierniak0
Date of Patent
May 18, 2010
0Patent Application Number
112291900
Date Filed
September 15, 2005
0Patent Primary Examiner
Patent abstract
A generational journaling data store can synchronize write accesses so that previous generation masters do not corrupt current generation journals. A master maintains a journal and accesses a data store on behalf of clients. When a master disappears a new master must take its place to ensure reliable and continuous access to the data store. Without generations, a previous master can reappear and corrupt journals and data stores. With generations, a newer generation journal can not be corrupted by a previous generation master.
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