Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-04-05
2005-04-05
Baderman, Scott (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130, C714S015000
Reexamination Certificate
active
06877111
ABSTRACT:
An invention is disclosed managing the replicated and migration capable state for an enterprise Java bean (EJB) application. The invention includes executing a Java application on a server that includes an entity bean. In addition, a replicated state manager is executed that includes program instructions for managing an in-memory state of the Java application, and program instructions for replicating the in-memory state of the Java application to a replicated state server. The replicated state server can be a memory replicated state server, or a disk replicated state server. To facilitate application state management, embodiments of the present invention store states of the entity beans objects using state objects, which are updated in response to changes in the state of the application. Hence, the embodiments of the present invention define a logical separation between the application and the state objects.
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Sailil Deshpande, “Clustering: Transparent Replication, Load Balancing, and Failover,” Jan. 2000, Retrieved from the Internet: <http://bdn.borland.com/article/images/26438/11501_r1.pdf>.
Silva et al., “Fault-Tolerant Execution of Mobile Agents,” Dependable Systems and Networks, 2000. DSN 2000. Proceedings International Conference on New York, NY, USA Jun. 25-28, 2000, IEEE Comput. Soc., US, Jun. 25, 2000 pp. 135-143.
Krishnan Sanjeev
Matena Vladimir
Mortazavi Masood
Sharma Rahul
Baderman Scott
Lohn Joshua
Martine & Penilla & Gencarella LLP
Sun Microsystems Inc.
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