The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2011
Filed:
Sep. 23, 2004
Eric Lawrence Barsness, Pine Island, MN (US);
Mahdad Majd, Rochester, MN (US);
John Matthew Santosuosso, Rochester, MN (US);
Eric Lawrence Barsness, Pine Island, MN (US);
Mahdad Majd, Rochester, MN (US);
John Matthew Santosuosso, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A database system has a contention monitor which determines when the level of contention for accessing or inserting records in the database rises above a threshold, and inhibits non-critical access to the database to reduce the level of contention. In a preferred embodiment, the level of contention is determined by periodically measuring the time for an INSERT operation on the database, and comparing the time to a threshold derived from a baseline time measurement for the operation during a time of normal database activity. Thus the contention level is inferred from the time to do the operation, in this case the INSERT query. In one embodiment, the contention monitor notifies a system administrator to take action to reduce the contention. In another embodiment, the contention monitor informs the system to take action automatically according to predetermined selections by the system administrator.