Method and system for embedding correlated performance measurements for distributed application performance decomposition

• US 7,720,958 B2
• Filed: 06/06/2001
• Issued: 05/18/2010
• Est. Priority Date: 03/09/2001
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Krueger, LeRoy A. Jr., Mills, W. Nathaniel III, Squillante, Mark S., Krishnakumar, Srirama Mandyam, Hellerstein, Joseph L.
• Primary Examiner(s): Srivastava; Vivek
• Assistant Examiner(s): Swearingen; Jeffrey R
• Application Number:
  US09/875,722
• Publication Number:
  US 20020129137A1
• Time in Patent Office: 3,268 Days
• Field of Search: 709/223, 709/224
• US Class Current: 709/224
• CPC Class Codes: G06F 11/3495 for systems
• CPC Class Codes: G06F 2201/87 Monitoring of transactions
• CPC Class Codes: H04L 41/5009 Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
• CPC Class Codes: H04L 41/5067 Customer-centric QoS measurements
• CPC Class Codes: H04L 43/091 Measuring contribution of individual network components to actual service level
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Techniques for use in accordance with application performance decomposition are provided which take advantage of the communications protocol used to carry a transaction between application components in a distributed computing network. Specifically, the invention extends the communications protocol by embedding data, such as timestamp and duration measurement data, in the protocol itself, rather than extending or altering the application or transaction data carried by the protocol as in existing approaches. Thus, the invention provides natural correlation of interactions of distributed application components on such transactions without modification to the application or transaction data. Because the correlation is performed in-line with the application component interactions, minimal data management overhead is required, and correlated performance decomposition is made possible in real-time for the transaction. Furthermore, subsequent processing stages of the distributed application can interpret the communications protocol to glean processing durations of previous stages in order to make decisions regarding treatment of the transaction.

Claims

1. A method for use at one or more application components of a distributed application in which at least a portion of the distributed application is executed, the method comprising the steps of:

embedding, at one of the application components, data relating to the performance of the distributed application in a communications protocol used to carry transaction data relating to the execution of the distributed application, wherein the performance data is embedded in the communications protocol without requiring alteration of the transaction data, and further wherein the performance data comprises a time stamp and duration measurement data; and

transmitting, from the application component, the embedded performance data with the transaction data to one or more other application components so that correlated application performance data is obtained at the one or more other application components with the transaction data;

wherein, in accordance with at least one of the one or more other application components that obtain the embedded performance data with the transaction data, the following steps are performed;

processing the performance data in association with other performance data relating to the one or more other application components;

embedding at least a portion of results associated with the processed performance data in the communications protocol used to carry transaction data relating to the execution of the distributed application; and

transmitting the embedded results with the transaction data to one or more other application components.

2. The method of claim 1, further comprising, in accordance with at least one of the one or more other application components that obtain the embedded performance data with the transaction data, the steps of:

embedding data relating to the performance of the distributed application at the at least one other application component in the communications protocol used to carry transaction data relating to the execution of the distributed application, wherein the performance data is embedded in the communications protocol without requiring alteration of the transaction data; and

transmitting the embedded performance data with the transaction data to one or more other application components.

3. The method of claim 2, wherein the transmitting step further comprises the at least one other application component transmitting:

(i) at least a portion of the performance data embedded thereby; and

(ii) at least a portion of the performance data embedded by the one application component.

4. The method of claim 1, wherein the performance data comprises elapsed times associated with transactions relating to the distributed application.

5. The method of claim 1, wherein the performance data further comprises an identifier associated with an application component and an identifier associated with a transaction relating to the distributed application.

6. The method of claim 1, wherein a format for the performance data comprises a “

keyword;

value”

format.

7. The method of claim 6, wherein the keyword comprises a prefix that identifies a data format and a variable suffix that identifies an application component as one of a timing source and a transaction sequencing source.

8. The method of claim 6, wherein the value comprises at least one of timestamp and duration information.

9. The method of claim 1, wherein n application components may embed and transmit performance data in the communications protocol so as to provide n levels of performance decomposition.

10. The method of claim 1, wherein the correlated performance data is reported to a performance measurement system.

11. The method of claim 1, wherein the distributed application is executed on the World Wide Web.

12. The method of claim 1, wherein the communications protocol is the HyperText Transport Protocol.

13. Apparatus for use at one or more application components of a distributed application in which at least a portion of the distributed application is executed, the apparatus comprising:

a memory;

at least one processor coupled to the memory and operative to;

(i) embed, at one of the application components, data relating to the performance of the distributed application in a communications protocol used to carry transaction data relating to the execution of the distributed application, wherein the performance data is embedded in the communications protocol without requiring alteration of the transaction data, and further wherein the performance data comprises a time stamp and duration measurement data; and

(ii) transmit, from the application component the embedded performance data with the transaction data to one or more other application components so that correlated application performance data is obtained at the one or more other application components with the transaction data;

wherein, in accordance with at least one of the one or more other application components that obtain the embedded performance data with the transaction data, the following operations are performed;

processing the performance data in association with other performance data relating to the one or more other application components;

embedding at least a portion of results associated with the processed performance data in the communications protocol used to carry transaction data relating to the execution of the distributed application; and

transmitting the embedded results with the transaction data to one or more other application components.

14. The apparatus of claim 13, further comprising at least another processor operative to, in accordance with at least one of the one or more other application components that obtain the embedded performance data with the transaction data:

embed data relating to the performance of the distributed application at the at least one other application component in the communications protocol used to carry transaction data relating to the execution of the distributed application, wherein the performance data is embedded in the communications protocol without requiring alteration of the transaction data; and

transmit the embedded performance data with the transaction data to one or more other application components.

15. The apparatus of claim 14, wherein the transmitting step further comprises the at least one other application component transmitting:

at least a portion of the performance data embedded thereby; and

at least a portion of the performance data embedded by the one application component.

16. The apparatus of claim 13, wherein the performance data comprises elapsed times associated with transactions relating to the distributed application.

17. The apparatus of claim 13, wherein the performance data further comprises an identifier associated with an application component and an identifier associated with a transaction relating to the distributed application.

18. The apparatus of claim 13, wherein a format for the performance data comprises a “

keyword;

value”

format.

19. The apparatus of claim 18, wherein the keyword comprises a prefix that identifies a data format and a variable suffix that identifies an application component as one of a timing source and a transaction sequencing source.

20. The apparatus of claim 18, wherein the value comprises at least one of timestamp and duration information.

21. The apparatus of claim 13, wherein n application components may embed and transmit performance data in the communications protocol so as to provide n levels of performance decomposition.

22. The apparatus of claim 13, wherein the correlated performance data is reported to a performance measurement system.

23. The apparatus of claim 13, wherein the distributed application is executed on the World Wide Web.

24. The apparatus of claim 13, wherein the communications protocol is the HyperText Transport Protocol.

25. An article of manufacture for use at one or more application components of a distributed application in which at least a portion of the distributed application is executed, comprising a machine readable storage medium containing one or more programs which when executed implement the step of:

embedding, at one of the application components, data relating to the performance of the distributed application in a communications protocol used to carry transaction data relating to the execution of the distributed application, wherein the performance data is embedded in the communications protocol without requiring alteration of the transaction data, and further wherein the performance data comprises a time stamp and duration measurement data, such that the embedded performance data may be transmitted with the transaction data to one or more other application components so that correlated application performance data may be obtained at the one or more other application components with the transaction data,

wherein, in accordance with at least one of the one or more other application components that obtain the embedded performance data with the transaction data, the following steps are performed;

processing the performance data in association with other performance data relating to the one or more other application components;

embedding at least a portion of results associated with the processed performance data in the communications protocol used to carry transaction data relating to the execution of the distributed application; and

transmitting the embedded results with the transaction data to one or more other application components.

26. A method for use at one or more application components of a distributed application in which at least a portion of the distributed application is executed, the method comprising the step of:

adding, at one of the application components, data relating to the performance of the distributed application to a communications protocol used to carry transaction data relating to the execution of the distributed application, wherein the added performance data comprises a time stamp and duration measurement data, such that the added performance data may be transported with the transaction data to one or more other application components so that correlated application performance data may be obtained at the one or more other application components with the transaction data;

wherein, in accordance with at least one of the one or more other application components that obtain the added performance data with the transaction data, the following steps are performed;

processing the performance data in association with other performance data relating to the one or more other application components;

adding at least a portion of results associated with the processed performance data in the communications protocol used to carry transaction data relating to the execution of the distributed application; and

transmitting the added results with the transaction data to one or more other application components.