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. 24, 2001
Filed:
Jul. 31, 1998
Johannes Klein, San Francisco, CA (US);
Albert C. Gondi, Santa Clara, CA (US);
Sitaram V. Lanka, Mountain View, CA (US);
William J. Carley, San Jose, CA (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
Methods and systems for interoperating a transaction processing system implementing the presumed abort variation of the two-phase commit (2PC) protocol with a system implementing the presumed nothing variation. The gateway process that is responsible for exporting a transaction branch to a foreign transaction management system from a system implementing the presumed abort variation records whether the foreign transaction manager is implementing the presumed abort variation or the presumed nothing variation. After system failure, the gateway process determines which variation is adopted for a specific transaction branch. If the foreign transaction manager is implementing the presumed abort variation, the transaction manager from which the transaction branch originated communicates with the foreign transaction manager through the gateway process in accordance with the presumed abort variation. If the foreign transaction manager is implementing the presumed nothing variation, the gateway process takes charge of driving abort processing in a manner transparent to the originating transaction manager.