Item and method for performing a cluster topology self-healing process in a distributed data system cluster
US7239605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Aug 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0663
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cluster topology self-healing process is performed in order to replicate a data set stored on a failed node from a first node storing another copy of the data set to a second non-failed node. The self-healing process is performed by: locking one of several domains included in the data set, where locking that domain does not lock any of the other domains in the data set; storing data sent from the first node to the second node in the domain; and releasing the domain. This process of locking, storing, and releasing is repeated for each other domain in the data set. Each domain may be locked for significantly less time than it takes to copy the entire data set. Accordingly, client access requests targeting a locked domain will be delayed for less time than if the entire data set is locked during the self-healing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.