Hybrid transaction/intent log for data replication

Details Hybrid transaction/intent log for data replication Hybrid transaction/intent log for data replication

2006-07-25

2006-07-25

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C714S005110, C714S016000

Reexamination Certificate

active

07082446

ABSTRACT:
A method whereby a transaction log is converted to an intent log and vice versa while the replication system is operating, thus allowing the replication system to operate primarily as a transaction log, but switch eventually to an intent log before an overflow condition of the transaction log occurs. The size of the hybrid log is tuned so that it remains a transaction log (with all the benefits) for commonly occurring small network outages but will convert to an intent log (and thus not overflow) if a prolonged outage occurs.

REFERENCES:
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patent: 5819020 (1998-10-01), Beeler, Jr.
patent: 5956489 (1999-09-01), San Andres
patent: 6092066 (2000-07-01), Offek
patent: 6163856 (2000-12-01), Dion
patent: 6260125 (2001-07-01), McDowell
T Haderer and A Reuter “Principles of Transaction-Oriented Database Recovery” Computing Surveys vol. 15 No. 4 pp. 287-317.

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