Methods, apparatuses, and devices for lease transfer between master and slave replicas
US12225075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Lease transfer between master and slave replicas is described. A master replicator determines that an initial master replica lease takes effect. On determining that a master replica transfer needs to be performed, sending a transfer preparation message to a target replicator prior to expiration of a current master replica lease. The target replicator locally starts and calculates a new master replica lease and returns a readiness response to the master replicator. The master replicator sends a lease extension message to remaining slave replicators to extend local corresponding leases. After receiving lease extension success responses of a majority of the slave replicators, the master replicator terminates the local master replica lease of the master replicator in advance, and sends a transfer confirmation message to the target replicator. The target replicator validates the new master replica lease to make the target replicator a new master replicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.