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:
Nov. 06, 2007
Filed:
Nov. 27, 2002
Harmeek Bedi, Foster City, CA (US);
Ashish Thusoo, Foster City, CA (US);
Thierry Cruanes, Redwood City, CA (US);
Harmeek Bedi, Foster City, CA (US);
Ashish Thusoo, Foster City, CA (US);
Thierry Cruanes, Redwood City, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Provided herein are techniques that may be used to dramatically increase parallism for distributed DML operations. The work of distributed DML operations are distributed in a way that avoids self-dead locks, by ensuring that, for a given data block, no more than one slave is assigned to modify a row that is wholly contained by the data block or whose head row piece is contained by the data block. Assigning slaves in this way not only allows more slaves to be assigned to modify a partition, but allows for greater flexibility in load balancing.