Hybrid DRAM-SSD memory system for a distributed database node
US9176867B2 · kind B2 · utility
1Cited by
1References
20Claims
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Key dates
| Filing date | Jan 5, 2015 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jan 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one exemplary aspect, a method includes building a data index from a set of data from a client application in a distributed database system. The data index is optimized for operation in a DRAM data-storage device, and wherein the data index is built to use a set of fix-sized blocks that fit a DRAM device block size. The data index is maintained in the DRAM data-storage device. An SSD data-storage device is used to persistently store the data referenced by the data index in the DRAM data-storage device, and wherein the data and the metadata are stored in the SSD data-storage device in a log-based format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.