Persistent file system objects for management of databases
US10133746B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2016 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Sep 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/289
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a mirrored database system, a careful write of intentions to perform file system actions is recorded in a persistent file system objects table that is flushed to disk prior to the actions being taken. The table durably and accurately records identities of file system objects that were in use by the database to facilitate creation and deletion of physical file directories and files on a database during crash recovery and during mirror resynchronize. In the event of a failure, crash recovery may quickly and easily identify file system objects which need to be cleaned up by reference to the persistent file system objects table. Similarly, resynchronization of the mirror database can be performed quickly by referring to the persistent file system table data to detect changes since the last database checkpoint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.