Maintaining client version affinity during a server cluster upgrade
US10664266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Sep 4, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Maintaining client version affinity during a rolling server cluster upgrade includes a server in the server cluster receiving a request from a client and checking the request for a version cookie indicating a software version that the client is running. Responsive to a determination that the server is running the same software version as the client, the server serves the request. Responsive to a determination that the client is running a software version matching a previous software version of the server, the server initiates a software upgrade on the client instead of servicing the request. Responsive to a determination that the server is not running the same software version as the client, the server forwards the request to one of the other servers in the server cluster that is running the same software version as the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.