System and method for efficient storage of long-lived...

Details System and method for efficient storage of long-lived... System and method for efficient storage of long-lived...

2007-12-13

2011-12-13

Winder, Patrice (Department: 2452)

Electrical computers and digital processing systems: multicomput

Computer-to-computer session/connection establishing

Session/connection parameter setting

C709S202000, C707S661000

Reexamination Certificate

active

08078737

ABSTRACT:
A SIP server can be deployed in a two-tier architecture, including an engine tier for processing of SIP communications and a state tier for maintaining the state associated with these communications. The state tier can include RAM-based replicas that provide data to the engines. Some of the SIP session state can be moved to the database in order to reduce the memory requirements of the state tier. Upon determining that a transaction boundary has been reached where the session state is steady, the state replica can save the data to the database. A hint can be received from the engine tier by the state replica indicating that the state data is ready to be saved. Subsequently, the data can be removed from the state tier by nulling out the bytes of actual data, while preserving the primary key, locking and timer information so as not to impact latency.

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BEA Systems, Inc., BEA WebLogic SIP Server: Configuring and Managing WebLogic SIP Server, Dec. 2, 2005, BEA Systems, Inc., Version 2.1, pp. 4-13.

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