System and method for efficiently synchronizing cache and persis

Details System and method for efficiently synchronizing cache and persis System and method for efficiently synchronizing cache and persis

1995-06-23

1999-02-16

Oberley, Alvin E.

G06F 1730

Patent

active

058729690

ABSTRACT:
A system and method for effectively synchronizing data in an object oriented distributed transaction processing system employing a multilevel data store. Each object that maintains first-level volatile data registers as a synchronization object if unsynchronized changes to that data exist. A register object at each node tracks synchronized objects registered for that node. Each registered synchronization object, in turn, registers with its superior node when registered synchronization objects are present. A hierarchy of registered synchronization objects and synchronization objects is thereby created. The transaction termination process transmits a pre-prepare message to the registered synchronization hierarchy providing each synchronization object an opportunity to flush its data to the second-level persistent data store. The hierarchical structure of registered objects ensures that the minimum number of messages are transmitted over the network.

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Distributed Transaction Processing: The XA Specification, CAE Specification, Dec. 1991, X/Open Company Limited, pp. 1-80.
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The Common Object Request Broker: Architecture and Specification, No. 91.12.1, Revision 1.1, Dec. 1991, pp. 13-44.
X/Open distributed Transaction Processing (DTP), X/Open CAE Specification, Sep. 19, 1991, pp. 1-42.

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