Dynamic client fail-over during a rolling patch installation based on temporal server conditions
US9960963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0889
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, system, and computer program product for upgrade procedures in high-availability clustered systems. The method selects fail-over nodes during rolling patch installation and comprises steps for identifying a first node to upgrade, migrating services of the first node to a second node and shutting down the first node to perform its upgrade, then migrating the services back from the second node to the first node. When performing an upgrade of the other nodes of the cluster (e.g., nodes of the cluster other than the first node), rather than migrating the services of the node to be upgraded to another node that still needs to be upgraded, instead migrate the services of the node to be upgraded to a node that has already been upgraded. This reduces the brown-out time at least to the extent that this method incurs only one migration per node rather than two migrations per node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.