INVENTORY UPDATING OF AN INTERNET PROTOCOL (IP) ALIAS WITHIN A HIGHLY AVAILABLE COMPUTING CLUSTER

• US 20130159483A1
• Filed: 12/14/2011
• Published: 06/20/2013
• Est. Priority Date: 12/14/2011
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Mendoza, Alfredo V., Jeyapaul, Rajesh K.
• Granted Patent: US 9,288,177 B2
• Time in Patent Office: Days
• US Class Current: 709/223
• CPC Class Codes: G06F 11/2035 without idle spare hardware
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 61/5076 Update or notification mechanisms, e.g. DynDNS

Abstract

A clustered computing data processing system can be configured for inventory management in a highly available cluster. The system can include a cluster of computers managed by a cluster agent and providing high availability for a hosted application in the cluster. The system also can include a systems management tool executing in memory of a host computer system and coupled to the cluster agent and maintaining an inventory of data pertaining to the computers in the cluster. The system yet further can include an Internet protocol (IP) alias discover module coupled to the tool. The module can include program code executing in the memory of the host computer system so as to receive notification from the cluster agent of a change to addressing data for the computers in the cluster and, responsive to the notification, to update the inventory to reflect the change to the addressing data.

Claims

1-7. -7. (canceled)

8. A clustered computing data processing system configured for inventory management in a highly available cluster, the system comprising:

a cluster of computers managed by a cluster agent and providing high availability for a hosted application in the cluster;

a systems management tool executing in memory of a host computer system and coupled to the cluster agent and maintaining an inventory of data pertaining to the computers in the cluster; and

,

an Internet protocol (IP) alias discover module coupled to the tool, the module comprising program code executing in the memory of the host computer system so as to receive notification from the cluster agent of a change to addressing data for the computers in the cluster and, responsive to the notification, to update the inventory to reflect the change to the addressing data.

9. The system of claim 8, wherein the addressing data comprises both a boot Internet Protocol (IP) address and also an alias IP address for the hosted application supported by the cluster.

10. The system of claim 8, wherein the notification is a detected change in status of a flag.

11. The system of claim 10, wherein the notification comprises a change to a hash value maintained by a separate agent manager receiving notification of the change in addressing data by the cluster agent.

12. The system of claim 11, wherein the flag is a Boolean value indicating a need to update the inventory based upon the change in the hash value.

13. A computer program product for inventory management in a highly available cluster, the computer program product comprising:

a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising;

computer readable program code for creating an inventory of computers in a cluster by a systems management tool executing in memory of a host computing system;

computer readable program code for receiving notification in the systems management tool from the cluster of a change to addressing data for computers in the cluster; and

,

computer readable program code for responsive to the notification, updating the inventory by the systems management tool to reflect the change to the addressing data.

14. The computer program product of claim 13, further comprising computer readable program code for creating the inventory prior to initializing the cluster and updating the inventory subsequent to the initializing of the cluster.

15. The computer program product of claim 13, further comprising creating the inventory prior to initializing the cluster and updating the inventory subsequent to the initializing of the cluster and also subsequent to a failover condition in the cluster.

16. The computer program product of claim 13, wherein the addressing data comprises both a boot Internet Protocol (IP) address and also an alias IP address for a hosted application supported by the cluster.

17. The computer program product of claim 13, wherein receiving notification in the systems management tool from the cluster of a change to addressing data for computers in the cluster, comprises detecting a change in status of a flag by the cluster.

18. The computer program product of claim 17, wherein the notification comprises a hash value of the addressing data.

19. The computer program product of claim 18, wherein the flag is a Boolean value indicating a necessity to update the inventory based upon a change in the hash value.