Management of a distributed computing system through replication of write ahead logs
US8627135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2010 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Aug 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Several methods and a system of a replicated service for write ahead logs are disclosed. In one embodiment, a method includes persisting a state of a distributed system through a write ahead log (WAL) interface. The method also includes maintaining a set of replicas of a WAL through a consensus protocol. In addition, the method includes providing a set of mechanisms for at least one of detection and a recovery from a hardware failure. The method further includes recovering a persistent state of a set of applications. In addition, the method includes maintaining the persistent state across a set of nodes through the hardware failover. In one embodiment, the system may include a WAL interface to persist a state of a distributed system. The system may also include a WAL replication servlet to maintain and/or recover a set of replicas of a WAL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.