Shared resource control in a distributed processing system

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...

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Bibliographische Detailangaben
Hauptverfasser: MADDURI, HARI HARANATH, FORMAN, IRA RICHARD
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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.