System and method for relating aborted client accesses of data to quality of service provided by a server in a client-server network

• US 20050076111A1
• Filed: 05/16/2002
• Published: 04/07/2005
• Est. Priority Date: 05/16/2002
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Fu, Yun, Tang, Wenting, Cherkasova, Ludmila
• Granted Patent: US 8,392,499 B2
• Time in Patent Office: Days
• US Class Current: 709/224
• CPC Class Codes: G06Q 30/00 Commerce

Abstract

A system and method are provided for relating aborted client accesses of server information to the quality of service provided to clients by a server in a client-server network. According to one embodiment, a method comprises determining performance data for at least one aborted client access of information from a server in a client-server network, and using the performance data to determine whether the aborted client access(es) relate to the quality of service provided to a client by the server.

Claims

1. A method for relating aborted client accesses of server information to the quality of service provided to clients by a server in a client-server network, said method comprising:

determining performance data for at least one aborted client access of information from a server in a client-server network; and

using said performance data to determine whether said at least one aborted client access relates to the quality of service provided to a client by said server.

2. The method of claim 1 wherein said using step further comprises:

determining whether said performance data for a given aborted client access exceeds a predefined threshold.

3. The method of claim 2 further comprising:

if said performance data for said given aborted client access is determined to exceed a predefined threshold, then determining that said given aborted client access is indicative of poor server quality of service.

4. The method of claim 1 wherein said performance data comprises:

response time in communicating requested information from said server to said client.

5. The method of claim 1 wherein said determining performance data comprises:

determining latency attributable to said client-server network.

6. The method of claim 1 wherein said determining performance data comprises:

determining latency attributable to said server.

7. The method of claim 6 wherein said using step further comprises:

determining whether said latency attributable to said server for a given aborted client access exceeds a predefined threshold.

8. The method of claim 7 further comprising:

if said latency attributable to said server for said given aborted client access is determined to exceed a predefined threshold, then determining that said given aborted client access is indicative of poor server quality of service.

9. The method of claim 1 further comprising:

detecting said at least one aborted client access.

10. The method of claim 9 wherein said detecting step comprises:

detecting said at least one aborted client access using network-level information.

11. The method of claim 10 wherein said network-level information comprises:

a RST packet sent by the client to the sever that explicitly indicates an aborted client access.

12. The method of claim 10 wherein said network-level information comprises:

a FIN packet with ACK sent by the client to the server, wherein the acknowledged sequence number is less than the maximum sequence number sent from the server to the client.

13. The method of claim 1 wherein said server comprises a web server.

15. The method of claim 1 wherein said information from a server comprises a web page.

16. The method of claim 15 further comprising:

capturing network-level information for said at least one aborted client access of said web page; and

using the captured network-level information to reconstruct said at least one aborted client access of said web page.

17. The method of claim 15 comprising:

acquiring information for a plurality of client-server transactions and using said information to relate said client-server transactions to their corresponding client web page accesses.

14. The method of claim 14 wherein said aborted client access comprises an aborted TCP connection to said web server for a client accessing a web page from said web server.

18. A system for measuring client-perceived quality of service provided by a server in a client-server network, said system comprising:

processor-based device executing software code for determining performance data for at least one aborted client access of server information in a client-server network; and

computer-executable software code for using said performance data to determine whether said at least one aborted client access relates to the quality of service provided to a client by said server.

19. The system of claim 18 wherein said processor-based device is said server.

20. The system of claim 18 wherein said computer-executable software code for using said performance data to determine whether said at least one aborted client access relates to the quality of service provided to a client by said server further comprises:

computer-executable software code for determining whether said performance data for a given aborted client access exceeds a predefined threshold.

21. The system of claim 20 wherein said computer-executable software code for using said performance data to determine whether said at least one aborted client access relates to the quality of service provided to a client by said server further comprises:

computer-executable software code for determining that said given aborted client access is indicative of poor server quality of service if said performance data for said given aborted client access is determined to exceed said predefined threshold.

22. The system of claim 18 wherein said performance data comprises:

response time in communicating said server information from said server to said client.

23. The system of claim 18 wherein said server comprises a web server.

24. The system of claim 23 wherein said aborted client access comprises an aborted TCP connection to said web server for a client accessing a web page from said web server.

25. The system of claim 18 wherein said server information comprises a web page.

26. A method for relating aborted web page accesses to the quality of service provided to clients by a server in a client-server network, said method comprising:

determining performance data for at least one aborted client access of a web page provided by a server in a client-server network; and

using said performance data to determine whether said at least one aborted client access relates to the quality of service provided to a client by said server.

27. The method of claim 26 wherein said using step further comprises:

determining whether said performance data for a given aborted client access exceeds a predefined threshold.

28. The method of claim 27 further comprising:

if said performance data for said given aborted client access is determined to exceed a predefined threshold, then determining that said given aborted client access is indicative of poor server quality of service.

29. The method of claim 26 wherein said performance data comprises:

response time in communicating said web page from said server to said client.

30. The method of claim 26 wherein said determining performance data comprises:

determining latency attributable to said client-server network.

31. The method of claim 26 wherein said determining performance data comprises:

determining latency attributable to said server.

32. The method of claim 31 wherein said using step further comprises:

determining whether said latency attributable to said server for a given aborted client access exceeds a predefined threshold.

33. The method of claim 32 further comprising:

if said latency attributable to said server for said given aborted client access is determined to exceed a predefined threshold, then determining that said given aborted client access is indicative of poor server quality of service.

34. The method of claim 26 wherein said aborted client access comprises an aborted TCP connection to said server.

35. The method of claim 26 further comprising:

capturing network-level information for said at least one aborted client access of said web page; and

using the captured network-level information to reconstruct said at least one aborted client access of said web page.

36. The method of claim 26 further comprising:

acquiring information for a plurality of client-server transactions and using said information to relate said client-server transactions to their corresponding client web page accesses.