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:
May. 10, 2011
Filed:
Jul. 05, 2007
Sudhir G. Rao, Beaverton, OR (US);
Bruce M. Jackson, Beaverton, OR (US);
Mark C. Davis, Durham, NC (US);
Srikanth N. Sridhara, Pittsburgh, PA (US);
Sudhir G. Rao, Beaverton, OR (US);
Bruce M. Jackson, Beaverton, OR (US);
Mark C. Davis, Durham, NC (US);
Srikanth N. Sridhara, Pittsburgh, PA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for localizing and resolving a fault in a cluster environment. The cluster is configured with at least one multi-homed node, and at least one gateway for each network interface. Heartbeat messages are sent between peer nodes and the gateway in predefined periodic intervals. In the event of loss of a heartbeat message by any node or gateway, an ICMP echo is issued to each node and gateway in the cluster for each network interface. If neither a node loss not a network loss is validated in response to the ICMP echo, an application level ping is issued to determine if the fault associated with the absence of the heartbeat message is a transient error condition or an application software fault.