Application recovery using a memory image
US11573865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2020 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Oct 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1474
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory image can be captured by generating metadata indicative of a state of volatile memory and/or byte-addressable PMEM at a particular time during execution of a process by an application. This memory image can be persisted without copying the in-memory data into a separate persistent storage by storing the metadata and safekeeping the in-memory data in the volatile memory and/or PMEM. Metadata associated with multiple time-evolved memory images captured can be stored and managed using a linked index scheme. A linked index scheme can be configured in various ways including a full index and a difference-only index. The memory images can be used for various purposes including suspending and later resuming execution of the application process, restoring a failed application to a previous point in time, cloning an application, and recovering an application process to a most recent state in an application log.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.