Operator state checkpoint markers and rehydration
US8726076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1471
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A checkpoint marker can be received at a first operator. The first operator can process the checkpoint marker by sending the checkpoint marker to a second operator and sending state checkpoint information representing a state of the first operator to a checkpoint writer. The checkpoint information can be used to rehydrate the state of one or more operators. For example, after a system failure, system shutdown, etc., checkpoint information can be received from a reader unit at a checkpoint information input queue of the first operator. A state of the first operator can be rehydrated using the checkpoint information. Processing of information in a data input queue of the first operator can be suspended while the checkpoint information is used to rehydrate the state of the first operator. Other operators in a system with the first operator (e.g., the second operator) may be checkpointed and rehydrated in the same manner as the first operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.