Patent · US Active

In-flight file descriptors checkpoint

US7685172B2 · kind B2 · utility

2Cited by

4References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

David J. Craft · Hereford, US
Vinit Jain · Austin, US
Lance W. Russell · Rosanky, US

Key dates

Filing date	Apr 27, 2007
Grant date	Mar 23, 2010
Priority date	—
Expiry date	May 22, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F11/1438
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computer implemented method, data processing system, and computer program product for enabling the restoration of in-flight file descriptors during a checkpoint operation. Responsive to a checkpoint operation being initiated on a process in a workload partition, in-flight file pointers in an in-flight file queue on a socket bound to the process are identified. A file descriptor is instantiated in the process file table of the process for each identified in-flight file pointer in the in-flight file queue. After completion of the checkpoint operation, the in-flight file queue on the socket may be reconstructed in a restore operation using the instantiated file descriptors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.