Method of applying changes to a standby database system
Patent 6980988 Issued on December 27, 2005. Estimated Expiration Date: 
October 1, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 1, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesConcurrently applying redo records to backup database in a log sequence using single queue server per queue at a time Replicating a database by the sequential application of hierarchically sorted log records System and method for providing hot spare redundancy and recovery for a very large database management system Method of automatically synchronizing mirrored database objects Patent #: 6289357 InventorsApplicationNo. 10260547 filed on 10/01/2002US Classes:707/8, Concurrency (e.g., lock management in shared database)707/201, Coherency (e.g., same view to multiple users)707/202, Recoverability707/204Archiving or backupExaminersPrimary: Mizrahi, Diane D.Attorney, Agent or FirmInternational ClassG06F017/30AbstractA method for applying changes to a standby system is described in which multiple apply tasks or “slaves” are scheduled to changes from redo logs, especially those changes in large transactions, in parallel and as soon as they are encountered in the logs. To foster data convergence, a partial ordering may be imposed on the transactions so that those transactions that actually depend on others are forced to wait on the transactions they are dependent upon commit. To foster read consistency, synchronization points may be periodically established, at which points a read consistent state of the standby database system can be obtained-all without adversely impact the throughput of the system.Other References
Field of SearchObject-oriented database structure referenceObject-oriented database structure Manipulating data structure (e.g., compression, compaction, compilation) Application of database or data structure (e.g., distributed, multimedia, image) Generating database or data structure (e.g., via user interface) DATABASE SCHEMA OR DATA STRUCTURE Object-oriented database structure processing Object-oriented database structure network FILE OR DATABASE MAINTENANCE Coherency (e.g., same view to multiple users) Recoverability Version management Archiving or backup File allocation | |
