Read caching with early refresh for eventually-consistent data store
US10635597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/466
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for managing a read cache in an eventually-consistent data store includes, in response to a read request for a specified data element, receiving the specified data element from the read cache as well as a remaining TTL (time to live) of the data element, as indicated by a timer for that data element in the read cache. If the remaining TTL falls below a predetermined value, the technique triggers an early refresh of the specified data element, prior to its expiration. Consequently, later-arriving read requests to the same data element that arrive before the data element has been refreshed experience cache hits, thus avoiding the need to perform their own time-consuming refresh operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.