System and method to accelerate compaction
US11126600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2018 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2365
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for accelerating compaction includes a compaction accelerator. The accelerator includes a compactor separate from a processor performing read and write operations for a database or a data store. The compactor is configured to receive a table to be compacted and entries written in the table, each of the entries being associated with a timestamp indicating when they were respectively written; identify, using a plurality of sort engines operating in parallel, the entries that were written last based on the timestamps; mark, using a plurality of marker engines operating in parallel, older copies of the entries for deletion; create, using the plurality of marker engines, tombstones for the older copies; create a compacted table, including the entries that were last written; delete the tombstones and the entries associated with the tombstones; and generate a freemap based on storage locations of the entries associated with the tombstones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.