Method and system for automatic detection and distribution of code version updates

• US 6,272,677 B1
• Filed: 08/28/1998
• Issued: 08/07/2001
• Est. Priority Date: 08/28/1998
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Lam, An Ngoc, Nguyen-Phuc, Vinh-Thuan
• Primary Examiner(s): Chaki, Kakali
• Assistant Examiner(s): DAS, CHAMELI
• Application Number:
  US09/141,635
• Time in Patent Office: 1,075 Days
• Field of Search: 717/11, 717/5, 395/712, 395/705, 702/203, 709/201
• US Class Current: 717/170
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

Aspects for automatic code version update detection and distribution for an application program running on a computer system in a computer network are described. In a method aspect, the method includes providing two agent processes, a slave agent and a master agent, on an agent system in the computer network. A request is received in the slave agent from a manager system in the computer network, the request including an appropriate code version of the running application for response. A determination of whether the slave agent can fulfill the request at the appropriate code version is made, and an automatic updating of the agent system occurs when the request cannot be fulfilled at the appropriate code version. In a further method aspect, two agent processes, a slave agent and a master agent, are provided on an agent system, with identification of whether the agent system is operating at an appropriate code version occurring during discovery and registration of the agent system in a manager system, and automatic updating of the agent system when the agent system is not operating at the appropriate code version.

Claims

1. A method for automatic code version update detection and distribution for an application program running on a computer system in a computer network, the method comprising:

providing two agent processes, a slave agent and a master agent, on an agent system in the computer network;

receiving a request in the slave agent from a manager system in the computer network, the request including an appropriate code version of the running application for response;

determining whether the slave agent can fulfill the request at the appropriate code version; and

automatically updating the agent system when the request cannot be fulfilled at the appropriate code version.

2. The method of claim 1 wherein automatically updating further comprises sending a response to the manager system to try the request for the agent system later.

3. The method of claim 2 wherein automatically updating further comprises downloading the appropriate code version from a source system in the computer network, the source system indicated in the request.

4. The method of claim 3 wherein automatically updating further comprises updating classes associated with the appropriate code version in the slave agent and storing native libraries associated with the appropriate code version in a temporary directory storage of the agent system.

5. The method of claim 4 wherein automatically updating further comprises sending a restart request from the slave agent to the master agent, terminating the slave agent, and restarting the slave agent by the master agent to establish the appropriate code version for the slave agent.

6. The method of claim 5 wherein automatically updating further comprises sending a terminate message to the master agent from the slave agent, terminating the master agent, and restarting the master agent by the slave agent to establish the appropriate code version for the master agent.

7. The method of claim 5 wherein restarting the slave agent comprises starting a new Java Virtual Machine.

8. The method of claim 6 wherein restarting the master agent comprises starting a new Java Virtual Machine.

9. A computer network system that achieves automatic code version detection and distribution, the computer network system comprising:

one or more manager systems; and

one or more agent systems coupled to the one or more manager systems, each agent system comprising at least two processes that include a slave agent and a master agent, each agent system receiving requests in the slave agent from the one or more manager systems and automatically updating the agent system for a running application when a desired code version in the received request does not match a current code version in the agent system receiving the request.

10. The system of claim 9 wherein the receiving agent system automatically updates by sending a response to the manager system to try the request for the agent system later and downloading the desired code version from a source system in the computer network, the source system indicated in the request.

11. The system of claim 10 wherein the receiving agent system automatically updates by updating classes associated with the desired code version in the slave agent and storing native libraries associated with the desired code version in a temporary storage directory of the agent system.

12. The system of claim 11 wherein the receiving agent system automatically updates by sending a restart request from the slave agent to the m aster agent, terminating the slave agent, and restarting the slave agent by the master agent to establish the desired code version for the slave agent.

13. The system of claim 12 wherein automatically updating further comprises sending a terminate message to the master agent from the slave agent, terminating the master agent, and restarting the master agent by the slave agent to establish the desired code version for the master agent.

14. A computer network system that achieves automatic code version detection and distribution, the computer network system comprising:

at least one agent system running a Java-based application program at a current code version level through two agent processes; and

at least one manager system determining whether the at least one agent system is operating with a desired code version level, the at least one agent system dynamically updating to the desired code version level when the current code version level does not match the desired code version level.

15. The system of claim 14 wherein the at least one manager system determines whether the at least one agent system is operating with a desired code version based on the current code version identified by the at least one agent system during discovery and registration of the at least one agent system in the at least one manager system.

16. The system of claim 14 wherein the at least one manager system determines whether the at least one agent system is operating with a desired code version by sending a request to the at least one agent system with the desired code version level for a response.

17. The system of claim 16 wherein the two agent processes comprise a master agent and a slave agent.

18. The system of claim 17 wherein communication with the master agent and the slave agent occurs via separate ports in the at least one agent system.

19. The system of claim 17 wherein the master agent and the slave agent each run under separate Java Virtual Machines.

20. The system of claim 17 wherein the slave agent receives the request from the at least one manager system.

21. The system of claim 20 wherein the request comprises a serialized object.

22. The system of claim 20 wherein the request further comprises an indicator of a downloadable source for the desired code version level.

23. A method for automatic code version update detection and distribution for an application program running on a computer system in a computer network, the method comprising:

providing two agent processes, a slave agent and a master agent, on an agent system in the computer network;

identifying whether the agent system is operating at an appropriate code version during discovery and registration of the agent system in a manager system of the computer network; and

automatically updating the agent system when the agent system is not operating at the appropriate code version.

24. The method of claim 23 wherein automatically updating further comprises downloading the appropriate code version from a source system in the computer network.

25. The method of claim 24 wherein automatically updating further comprises updating classes associated with the appropriate code version in the slave agent and storing native libraries associated with the appropriate code version in a temporary directory storage of the agent system.

26. The method of claim 25 wherein automatically updating further comprises sending a restart request from the slave agent to the master agent, terminating the slave agent, and restarting the slave agent by the master agent to establish the appropriate code version for the slave agent.

27. The method of claim 26 wherein automatically updating further comprises sending a terminate message to the master agent from the slave agent, terminating the master agent, and restarting the master agent by the slave agent to establish the appropriate code version for the master agent.

28. The method of claim 26 wherein restarting the slave agent comprises starting a new Java Virtual Machine.

29. The method of claim 27 wherein restarting the master agent comprises starting a new Java Virtual Machine.