Methods and apparatus for impact analysis and problem determination

• US 20040049365A1
• Filed: 09/11/2002
• Published: 03/11/2004
• Est. Priority Date: 09/11/2002
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Keller, Alexander, Kar, Gautam, Hassinger, Sebastian D.
• Granted Patent: US 7,505,872 B2
• Time in Patent Office: Days
• US Class Current: 702/186
• CPC Class Codes: G06F 11/0709 in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
• CPC Class Codes: G06F 11/079 Root cause analysis, i.e. error or fault diagnosis in a hardware test environment G06F11/22; in a software test environment G06F11/36

Abstract

A technique for determining an impact of a condition (e.g., service outage) of at least one subject component in a computing environment comprises the following steps/operations. First, one or more components in the computing environment which depend on the at least one subject component (e.g., dependents) are identified. Identification comprises traversing at least a portion of a model representative of an existence of one or more relationships associated with at least a portion of components of the computing environment and which is capable of accounting for a full lifecycle (e.g., including deployment, installation and runtime) associated with at least one component of the computing environment. Then, one or more procedures are performed in accordance with the one or more identified components to determine a condition status associated with each of the one or more identified components. By way of example, the inventive techniques may be applied to a distributed computing environment. The computing environment may also be an autonomic computing environment.

Claims

1. A computer-based method for determining an impact of a condition of at least one subject component in a computing environment, the method comprising the steps of:

identifying one or more components in the computing environment which depend on the at least one subject component, wherein identification comprises traversing at least a portion of a model representative of an existence of one or more relationships associated with at least a portion of components of the computing environment and which is capable of accounting for a full lifecycle associated with at least one component of the computing environment; and

performing one or more procedures in accordance with the one or more identified components to determine a condition status associated with each of the one or more identified components.

2. The method of claim 1, wherein the computing environment comprises a distributed computing environment.

3. The method of claim 1, wherein the computing environment comprises an autonomic computing environment.

4. The method of claim 1, wherein the identifying step further comprises identifying the one or more components which directly depend on the at least one subject component.

5. The method of claim 1, wherein the identifying step further comprises identifying a complete set of components which depend on the at least one subject component.

6. The method of claim 1, wherein the performing step further comprises performing the one or more procedures in a stepwise manner.

7. The method of claim 1, wherein the performing step further comprises performing the one or more procedures in a combined manner.

8. The method of claim 1, wherein the model is in a form comprising a functional categorization, a structural categorization and an operational categorization.

9. The method of claim 8, wherein the identifying step further comprises computing the operational categorization of the model based on at least one input criterion and traversing the operational categorization to identify the one or more components in the computing environment which depend on the at least one subject component.

10. The method of claim 9, wherein the at least one input criterion comprises at least one of a name of the at least one subject component, a host associated with the at least one subject component, a direction of the traversal, a depth of the traversal, a path of the traversal and at least one filtering criterion.

11. The method of claim 1, wherein the one or more procedures of the performing step comprise at least one of a component inspection procedure, a component exercising procedure, a component heartbeat detection procedure and a component status indication procedure.

12. The method of claim 1, wherein the condition of the at least one subject component is one of failed, not failed and degraded.

13. The method of claim 1, wherein a component is one of a service, an application, middleware, hardware, a device driver, an operating system and a system associated with the computing environment.

14. The method of claim 1, wherein the impact determination method is performed for one or more subject components substantially concurrently.

15. The method of claim 1, wherein at least a portion of results of the impact determination method is one of persistently stored and not persistently stored.

16. The method of claim 1, further comprising the step of maintaining a history of results associated with the impact determination method.

17. The method of claim 16, wherein at least a portion of the history is used to identify a most likely impacted component.

18. Apparatus for determining an impact of a condition of at least one subject component in a computing environment, the apparatus comprising:

at least one processor operative to;

(i) identify one or more components in the computing environment which depend on the at least one subject component, wherein identification comprises traversing at least a portion of a model representative of an existence of one or more relationships associated with at least a portion of components of the computing environment and which is capable of accounting for a full lifecycle associated with at least one component of the computing environment; and

(ii) cause performance of one or more procedures in accordance with the one or more identified components to determine a condition status associated with each of the one or more identified components; and

memory, coupled to the at least one processor, operative to store at least a portion of results associated with the identifying and performing operations.

19. The apparatus of claim 18, wherein the computing environment comprises a distributed computing environment.

20. The apparatus of claim 18, wherein the computing environment comprises an autonomic computing environment.

21. The apparatus of claim 18, wherein the identifying operation further comprises identifying the one or more components which directly depend on the at least one subject component.

22. The apparatus of claim 18, wherein the identifying operation further comprises identifying a complete set of components which depend on the at least one subject component.

23. The apparatus of claim 18, wherein the performing operation further comprises causing the performance of the one or more procedures in a stepwise manner.

24. The apparatus of claim 18, wherein the performing operation fuirther comprises causing the performance of the one or more procedures in a combined manner.

25. The apparatus of claim 18, wherein the model is in a form comprising a functional categorization, a structural categorization and an operational categorization.

26. The apparatus of claim 25, wherein the identifying operation further comprises computing the operational categorization of the model based on at least one input criterion and traversing the operational categorization to identify the one or more components in the computing environment which depend on the at least one subject component.

27. The apparatus of claim 26, wherein the at least one input criterion comprises at least one of a name of the at least one subject component, a host associated with the at least one subject component, a direction of the traversal, a depth of the traversal, a path of the traversal and at least one filtering criterion.

28. The apparatus of claim 18, wherein the one or more procedures of the performing operation comprise at least one of a component inspection procedure, a component exercising procedure, a component heartbeat detection procedure and a component status indication procedure.

29. The apparatus of claim 18, wherein the condition of the at least one subject component is one of failed, not failed and degraded.

30. The apparatus of claim 18, wherein a component is one of a service, an application, middleware, hardware, a device driver, an operating system and a system associated with the computing environment.

31. The apparatus of claim 18, wherein impact determination is performed by the at least one processor for one or more subject components substantially concurrently.

32. The apparatus of claim 18, wherein at least a portion of results of the impact determination performed by the at least one processor is one of persistently stored and not persistently stored.

33. The apparatus of claim 18, wherein the at least one processor is further operative to maintain a history of results associated with the impact determination method.

34. The apparatus of claim 33, wherein at least a portion of the history is used to identify a most likely impacted component.

35. An article of manufacture for determining an impact of a condition of at least one subject component in a computing environment, comprising a machine readable medium containing one or more programs which when executed implement the steps of:

identifying one or more components in the computing environment which depend on the at least one subject component, wherein identification comprises traversing at least a portion of a model representative of an existence of one or more relationships associated with at least a portion of components of the computing environment and which is capable of accounting for a full lifecycle associated with at least one component of the computing environment; and

performing one or more procedures in accordance with the one or more identified components to determine a condition status associated with each of the one or more identified components.