Asynchronous transcription object management system

Details Asynchronous transcription object management system Asynchronous transcription object management system

2007-04-17

2007-04-17

Follansbee, John (Department: 2154)

Electrical computers and digital processing systems: multicomput

Distributed data processing

Client/server

C707S793000, C707S793000, C718S101000

Reexamination Certificate

active

09715955

ABSTRACT:
Described herein is a system for executing distributed transactions. A coordinator and one or more participants cooperate to execute a distributed transaction, the distributed transaction including for each participant a transaction executed by the participant. To manage the transaction, the coordinator and the participant communicate over a network using, for example, a stateless protocol. Before each participant commits the transaction, the participants determine that the coordinator has committed the transaction. The coordinator commits the transaction after receiving acknowledgment from all the participants that they will commit the transaction. To determine whether the coordinator has committed the transaction, a participant transmits a message to the coordinator to acknowledge that it will commit the distributed transaction. The participant commits its respective transaction if it receives an acknowledgement from the coordinator. For the particular transaction being executed by a participant, the participant prevents other transactions from modifying a data item affected by the particular transaction. The participant will prevent such modifications until termination criteria for the particular transaction is satisfied, in which case the participant terminates the transaction.

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