Patents by Inventor Neil James Scott Macnaughton

Neil James Scott Macnaughton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Determining affinity in a cluster
    Patent number: 8037169
    Abstract: A lock manager system is provided that includes multiple distinct mechanisms for assigning resources to masters. Specifically, the lock manager system includes (1) one or more assignment mechanisms that do not take into account the affinity between nodes and objects (“affinity-independent assignment mechanisms”), and (3) one or more assignment mechanisms that do take into account the affinity between nodes and objects (“affinity-based assignment mechanisms”). At any given time, the assignment of any given resource to a master is governed by only one of the multiple assignment mechanisms employed by the system. Various techniques are described for determining which assignment mechanism to use with which resources.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: October 11, 2011
    Assignee: Oracle International Corporation
    Inventors: Neil James Scott Macnaughton, Sashikanth Chandrasekaran
  • Creating and dissolving affinity relationships in a cluster
    Patent number: 7493400
    Abstract: A lock manager system is provided that includes multiple distinct mechanisms for assigning resources to masters. Specifically, the lock manager system includes (1) one or more assignment mechanisms that do not take into account the affinity between nodes and objects (“affinity-independent assignment mechanisms”), and (3) one or more assignment mechanisms that do take into account the affinity between nodes and objects (“affinity-based assignment mechanisms”). At any given time, the assignment of any given resource to a master is governed by only one of the multiple assignment mechanisms employed by the system. Various techniques are described for determining which assignment mechanism to use with which resources.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: February 17, 2009
    Assignee: Oracle International Corporation
    Inventors: Juan R. Loaiza, Neil James Scott Macnaughton, Sashikanth Chandrasekaran