Determining live migration speed based on workload and performance characteristics
US10191922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2014 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Sep 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/214
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for a live migration in a multitenant clustered database aimed at providing efficient migration of transactional online databases with no service interruption or failed requests and minimal impact on quality of service. The migration is facilitated by a client connection pool, which migrates connections from the source node to the target node using a self-adapting algorithm to control the migration rate. The algorithm calculates a base migration rate according to the relative number of connections transferred to the target node. Once base migration rate is calculated, the algorithm accelerates or throttles the base migration rate based on workload behavior and system load, attempting to minimize impact on the migrated tenant, while keeping overall migration time low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.