Patents Represented by Attorney Prentiss Johnson; SVL; IP Law

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  • Distributed garbage collection in a dataflow system
    Patent number: 8112462
    Abstract: A method and system for distributed garbage collection in a pipelined workflow environment comprising a plurality of processing nodes that pass item references to each other. Each node maintains a reference list of local item references and a reference dictionary of remote item references, and periodically synchronizes the reference list with the reference dictionaries of other nodes in the workflow, so that item references are not marked for garbage collection while other processing nodes may still have outstanding references to them.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: February 7, 2012
    Assignee: International Business Machines Corporation
    Inventors: Mayank Pradhan, Edison Lao Ting, Robbert Van der Linden