Dynamic changes in configuration

G - Physics – 06 – F

Patent

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G06F 9/00 (2006.01) G06F 11/14 (2006.01) G06F 15/16 (2006.01)

Patent

CA 2241840

Configuration changes are dynamically applied to a cluster multiprocessing system by enqueuing a configuration change event. When the configuration change event is processed, the prior configuration is backed up and each software component applies a relevant portion of a configuration change transaction in an ordered, synchronized manner. Each software component applies its portion of the transaction either by reinitialization or a logged transition operation. If the configuration change transaction fails, the software components roll back the portions of the configuration change already applied in an ordered, synchronized manner to restore the prior configuration. Multiple events for different configuration changes may be enqueued.

Des modifications de configuration sont appliquées dynamiquement à un système de multitraitement de groupe en mettant en file d'attente un événement modificateur de configuration. Lorsque cet événement est traité, la configuration antérieure est sauvegardée et chaque composante logicielle applique une partie pertinente d'une transaction de modification de configuration d'une manière ordonnée, synchronisée. Chaque composante logicielle applique sa partie de la transaction soit par réinitialisation soit au moyen d'une opération de transition enregistrée. Si la transaction échoue, les composantes logicielles annulent les parties de la modification de configuration déjà appliquées d'une manière ordonnée, synchronisée, afin de rétablir la configuration antérieure. De multiples événements applicables à différentes modifications de configuration peuvent être mis en file d'attente.

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