Commit processing system which provides a list of sites to each

Details Commit processing system which provides a list of sites to each Commit processing system which provides a list of sites to each

1991-05-10

1994-03-01

Lee, Thomas C.

Boots, shoes, and leggings

3642824, 364284, 3642821, 364DIG1, G06F 900

Patent

active

052915948

ABSTRACT:
A distributed database system comprises a plurality of sites having a computer and a database, and interconnected by communication lines. In each computer, a transaction execution section executes data processing of transaction by accessing the database, according to a transaction generated by a transaction generation section or a transaction sent by another site. A list creation section creates a list of the sites which participate in the transaction generated by the transaction generation section, and sends the list to all other sites participating in the transaction. A commit preparation process section prepares the commit processing of the transaction when the transaction execution section has finished executing the data processing of the transaction and sends a commit preparation completion message to all participation sites. A commit process section executes commit processing of the transaction when it has received the commit preparation completion message from all participation sites within a predetermined period after sending the commit preparation completion message to them.

REFERENCES:
patent: 5065311 (1991-11-01), Masai et al.
A Distributed Commit Protocol for a Multicomputer System by Ancilotti et al., IEEE May, 1990.
Distributed Databases, Principles and Systems, Chapter 7, Sections 2.4-2.5, "The 2-Phase-Commitment Protocol," Stefano Ceri et al., 1984.

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