Invention Grant
- Patent Title: High availability via data services
- Patent Title (中): 通过数据服务实现高可用性
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Application No.: US11874116Application Date: 2007-10-17
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Publication No.: US07827151B2Publication Date: 2010-11-02
- Inventor: Vivek P. Singhal , Ian David Emmons
- Applicant: Vivek P. Singhal , Ian David Emmons
- Applicant Address: US MA Bedford
- Assignee: Progress Software Corporation
- Current Assignee: Progress Software Corporation
- Current Assignee Address: US MA Bedford
- Agency: Fenwick & West LLP
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
Application-level replication, the synchronization of data updates within a cluster of application servers, may be provided by having application servers themselves synchronize all updates to multiple redundant databases, precluding the need for database-level replication. This may be accomplished by first sending a set of database modifications requested by the transaction to a first database. Then a message may be placed in one or more message queues, the message indicating the objects inserted, updated, or deleted in the transaction. Then a commit command may be sent to the first database. The set of database modifications and a commit command may then be sent to second database. This allows for transparent synchronization of the database and quick recovery from a database failure, while imposing little performance or network overhead.
Public/Granted literature
- US20080034251A1 HIGH AVAILABILITY VIA DATA SERVICES Public/Granted day:2008-02-07
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