Parallel queue propagation

Details Parallel queue propagation Parallel queue propagation

1996-12-19

1999-02-09

Black, Thomas G.

Data processing: database and file management or data structures

Database design

Data structure types

707 1, 707 2, 707 7, 707 8, 707 10, 707101, 707103, 707203, G06F 1730

Patent

active

058707611

ABSTRACT:
A method and system are provided for duplicating at a destination site changes made to data at a source site. According to the method a plurality of streams are established between the source site and the destination site. The plurality of streams are used in parallel to propagate changes made at the source site to the destination site. A record of transactions that made changes that need to be propagated from the source site to the destination site is maintained at the source site. Before propagating changes made by a transaction to the destination site on a stream of the plurality of streams, the record of transactions is inspected to identify a set of transactions whose changes are not known to have been made permanent at the destination site. It is then determined whether the transaction could possibly depend on any transaction in the set of transactions. If the transaction could not possibly depend on any transaction in the set of transactions, then the changes made by the transaction are propagated to the destination site using one of the plurality of streams.

REFERENCES:
patent: 4432057 (1984-02-01), Daniell et al.
patent: 4551830 (1985-11-01), Huffman
patent: 5058051 (1991-10-01), Brooks
patent: 5170480 (1992-12-01), Mohan et al.
patent: 5261094 (1993-11-01), Everson et al.
patent: 5347653 (1994-09-01), Flynn et al.
patent: 5383186 (1995-01-01), Shinn et al.
patent: 5463772 (1995-10-01), Thompson et al.
patent: 5511188 (1996-04-01), Pascucci et al.
patent: 5530855 (1996-06-01), Satoh et al.
patent: 5613113 (1997-03-01), Goldring
patent: 5640561 (1997-06-01), Satoh et al.
patent: 5678061 (1997-10-01), Mourad
patent: 5684990 (1997-11-01), Boothby
patent: 5689506 (1997-11-01), Chiussi et al.
patent: 5696910 (1997-12-01), Pawlowski
Extending Logging for Database Snapshot Refresh, Bo Kahler and Oddvar Risnes, Proceeding of the 13th VLDB Conference, Brighton 1987.

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