Efficient replication of distributed storage changes for read-only nodes of a distributed database
US9507843B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A distributed database system may efficiently replicate distributed storage system changes on one or more read-only nodes. Storage metadata that indicates an access scheme for obtaining data for a particular view of the database from a distributed storage system may be maintained at a read-only node. An update to the storage metadata may be received that indicates a change to the distributed storage system that affects the validity of read requests for a different particular view of the database. In some embodiments, the change may indicate which storage nodes may be storing data according to the different particular view of the database, such as a change in membership of a protection group for the data at the distributed storage system. The storage metadata at the read-only node may be updated according to the received update such that a subsequent read request for the different particular view of the database is sent to the distributed storage system according to the updated access scheme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.