Live migration of distributed databases
US10642860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jun 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/27
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An example method of live migration of distributed databases may include implementing a first intermediate database access mode with respect to a distributed database to be migrated from an original set of storage servers to a destination set of storage servers, wherein, in the first database access mode, database read requests are routed to the original set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include copying a plurality of records of the distributed database from the original set of storage servers to the destination set of storage servers. The method may further include switching to a second intermediate database access mode, in which database read requests are routed to the destination set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include switching to a post-migration database access mode, in which database read and update requests are routed to the destination set of storage servers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.