Distributed processing object shared resource control apparatus

Details Distributed processing object shared resource control apparatus Distributed processing object shared resource control apparatus

1993-06-14

1996-08-06

Black, Thomas G.

Boots, shoes, and leggings

395726, 364974, 364963, 3642821, 3642822, 364DIG1, 3642818, 3642281, 3642623, 3642816, G06F 1730

Patent

active

055443532

ABSTRACT:
A system and method for determining a master process for control of a shared system resource. The improved system requires the master process to hold exclusive access on a shared resource control file only intermittently. The master process periodically updates the shared resource control file with a new timestamp. Processes seeking resource access read the shared control file and determine whether another process has been designated master. If the interval since the latest timestamp is greater than a preset staleness interval, the shared control file is discarded and a new one created by the accessing process.

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patent: 5333316 (1994-07-01), Champagne et al.
patent: 5388255 (1995-02-01), Pytlik et al.
IBM Technical Disclosure Bulletin vol. 34 No. 9, Feb. 1992, Technique For Fast Query Of A LAN-Based Database.

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