Remote duplicate database facility with improved throughput and fault tolerance
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 14, 1998
Issued Date -
N/A
app pub date -
Aug 28, 1996
filing date -
Jan 24, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A local computer system has a local database, application programs that modify the database and a transaction manager that stores audit records in a local audit trail reflecting the application programs' modifications to the local database. A remote computer system has a backup database. A remote data duplication facility (RDF) is distributed in the local computer system and the remote computer for maintaining synchronization of the backup database with the local database. The RDF has an extractor process and a receiver process. The extractor process has multiple updater processes, extracts audit records from the local audit trail and transmits them to the receiver process, which distributes them to the updater processes which in tuna initiate redo operations of database modifications in at least a subset of the audit records against the backup database. Should the audit records not arrive in proper sequence, the receiver transmits an error message to the extractor process, which extracts audit records from a restart audit trail position value.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully