Patents by Inventor Srikanth N. Sridhara

Srikanth N. Sridhara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reliable fault resolution in a cluster
    Patent number: 7941690
    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.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: May 10, 2011
    Assignee: International Business Machines Corporation
    Inventors: Sudhir G. Rao, Bruce M. Jackson, Mark C. Davis, Srikanth N. Sridhara
  • Reliable Fault Resolution In A Cluster
    Publication number: 20100115338
    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.
    Type: Application
    Filed: July 5, 2007
    Publication date: May 6, 2010
    Inventors: Sudhir G. Rao, Bruce M. Jackson, Mark C. Davis, Srikanth N. Sridhara
  • Reliable fault resolution in a cluster
    Patent number: 7284147
    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 nor 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.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: October 16, 2007
    Assignee: International Business Machines Corporation
    Inventors: Sudhir G. Rao, Bruce M. Jackson, Mark C. Davis, Srikanth N. Sridhara