Scan server for dual-format database
US9715414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2015 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Oct 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and system for a multi-instance database scan server is provided to process data scan operations for segments within in-memory stores, such as in-memory columnar (IMC) stores. The scan server uses a client/server based model, wherein each database instance in the database management system (“DBMS”) is associated with a client-side scan server and a server-side scan server. The client-side scan server can reside in the data and/or index layer of the DBMS, receiving requests for scan operations on in-memory segments. After receiving a data scan request from an IMC client, the client-side scan server can create several independently executable scanning tasks to process the request. The scanning tasks are each assigned to a particular server-side scan server for processing based on one or more factors, which may include a load balancing component. Additional factors to be considered may include instance affinity and/or NUMA (Non-Uniform Memory Access) affinity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.