System and method for failure recovery in a shared resource system having a moving write lock
US5550973A · kind A · utility
16Cited by
16References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Mar 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/142
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The system and method of the present invention provides for recovery from failure of a distributed processing system process designated as a master process for at least one shared resource. The system of the invention provides for detection of the failure by one or more of the shadow processes. The detecting process tests to determine whether it has the shared write lock managed by the master process. If it does, it becomes the master process. If not, it determines from the shared control file which process holds the write lock and it communicates to that process a request to assume master process responsibilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.