Patents by Inventor Stephanie H. Lee

Stephanie H. Lee 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).

  • Maintaining database consistency when nearing the end of a database recovery log
    Patent number: 9665599
    Abstract: Log records are generated by a computer system and stored in a computer readable storage area for recording changes to database objects responsive to receiving transaction requests, wherein the locators for the log records are of a predetermined maximum size that provides a maximum trackable size limit of the storage area. A computer system estimates an amount of time for the storing of the generated log records to fill the storage area up to the maximum trackable size limit. A computer system sets a soft limit to the storage area that is smaller than the maximum trackable size limit, including setting the soft limit based on the estimated amount of time.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: May 30, 2017
    Assignee: International Business Machines Corporation
    Inventors: Stephanie H. Lee, David L. Levish, David W. Slinger
  • Creating and maintaining order of a log stream
    Patent number: 9015137
    Abstract: Provided are techniques for using a series of compare and swap operations to assign a Relative Byte Address (RBA) and a Logical Record Sequence Number (LRSN) to a log record. One or more log buffers for storing the log record are identified, and the log record is moved to the one or more log buffers.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: April 21, 2015
    Assignee: International Business Machines Corporation
    Inventors: Stephanie H. Lee, David L. Levish, Ronald E. Parrish
  • Creating and maintaining order of a log stream
    Patent number: 9009125
    Abstract: Provided are techniques for using a series of compare and swap operations to assign a Relative Byte Address (RBA) and a Logical Record Sequence Number (LRSN) to a log record. One or more log buffers for storing the log record are identified, and the log record is moved to the one or more log buffers.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: April 14, 2015
    Assignee: International Business Machiness Corporation
    Inventors: Stephanie H. Lee, David L. Levish, Ronald E. Parrish
  • Maintaining Database Consistency When Nearing the End of a Database Recovery Log
    Publication number: 20140358878
    Abstract: Log records are generated by a computer system and stored in a computer readable storage area for recording changes to database objects responsive to receiving transaction requests, wherein the locators for the log records are of a predetermined maximum size that provides a maximum trackable size limit of the storage area. A computer system estimates an amount of time for the storing of the generated log records to fill the storage area up to the maximum trackable size limit. A computer system sets a soft limit to the storage area that is smaller than the maximum trackable size limit, including setting the soft limit based on the estimated amount of time.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Inventors: Stephanie H. Lee, David L. Levish, David W. Slinger
  • CREATING AND MAINTAINING ORDER OF A LOG STREAM WITHOUT USE OF A LOCK OR LATCH
    Publication number: 20120203805
    Abstract: Provided are techniques for using a series of compare and swap operations to assign a Relative Byte Address (RBA) and a Logical Record Sequence Number (LRSN) to a log record. One or more log buffers for storing the log record are identified, and the log record is moved to the one or more log buffers.
    Type: Application
    Filed: April 18, 2012
    Publication date: August 9, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephanie H. Lee, David L. Levish, Ronald E. Parrish
  • CREATING AND MAINTAINING ORDER OF A LOG STREAM WITHOUT USE OF A LOCK OR LATCH
    Publication number: 20120096055
    Abstract: Provided are techniques for using a series of compare and swap operations to assign a Relative Byte Address (RBA) and a Logical Record Sequence Number (LRSN) to a log record. One or more log buffers for storing the log record are identified, and the log record is moved to the one or more log buffers.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephanie H. Lee, David L. Levish, Ronald E. Parrish