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:
Oct. 30, 2012
Filed:
May. 22, 2008
Method and apparatus for maintaining and processing provenance data in data stream processing system
Marion Lee Blount, Mahopac, NY (US);
John Sidney Davis, Ii, Arlington, VA (US);
Maria Rene Ebling, White Plains, NY (US);
Archan Misra, Bridgewater, NJ (US);
Daby Mousse Sow, Croton on Hudson, NY (US);
Min Wang, Cortlandt Manor, NY (US);
Marion Lee Blount, Mahopac, NY (US);
John Sidney Davis, II, Arlington, VA (US);
Maria Rene Ebling, White Plains, NY (US);
Archan Misra, Bridgewater, NJ (US);
Daby Mousse Sow, Croton on Hudson, NY (US);
Min Wang, Cortlandt Manor, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques are disclosed for maintaining and processing provenance data in such data stream processing systems. For example, a method for processing data associated with a data stream received by a data stream processing system, wherein the system comprises a plurality of processing elements, comprising the following steps. A portion of data associated with the data stream is maintained. The maintained data comprises inputs to each processing element that contributed to an output of each processing element. In response to an alert generated by one of the processing elements, a scheduler is triggered to determine when a pre-calculation of a prospective query related to the alert should be executed. In response to the scheduler, at least a portion of the maintained data is used to determine a set of data that contributed to the alert such that the alert-contributing set of data can be used to respond to the prospective query upon arrival thereof.