COMMON RECORDING AND REPLAYING PERFORMANCE TEST TOOL FOR A CLIENT-SERVER ENVIRONMENT

• US 20110246971A1
• Filed: 04/02/2010
• Published: 10/06/2011
• Est. Priority Date: 04/02/2010
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Dash, Rakesh Kumar, Chua, Stevenson
• Granted Patent: US 9,009,676 B2
• Time in Patent Office: Days
• US Class Current: 717/135
• CPC Class Codes: G06F 11/3414 Workload generation, e.g. scripts, playback
• CPC Class Codes: G06F 2201/875 Monitoring of systems including the internet

Abstract

A method, system and computer program product for recording and replaying a program execution in a client-server environment capable of supporting different client-server communication protocols. A common recorder of the exemplary embodiments identifies respective class files and libraries used by a client application to process client actions and data passed in client requests and server responses. The recorder stores class files and data in a replay file and later re-creates server loads and client actions based on the class files, data and client action results in the replay file during a replay of the execution.

Claims

1. A computer-implemented method for recording and replaying an execution of a client application in a client-server environment, comprising:

identifying class files used by the client application to process client actions during the execution;

identifying data passed in client requests and data returned in server responses;

recording the identified class files and data in a replay file; and

generating a server load based on the replay file during a replay execution.

2. The method of claim 1, further comprising re-creating client application processes based on the replay file during the replay execution.

3. The method of claim 1, wherein the client requests include remote service and function calls initiated by the client application.

4. The method of claim 1, wherein the returned data include information for identifying the server.

5. The method of claim 4, wherein the server-identifying information includes a server IP address and a port number.

6. The method of claim 1, wherein the client application is a Web service and the class files include dynamic proxy class files.

7. The method of claim 1, wherein the client application is a Remote Method Invocation (RMI) application and the class files include stub class files and skeleton class files.

8. The method of claim 1, wherein the client application is of a type selected from the group of Common Object Request Broker Architecture (CORBA), Enterprise JavaBeans (EJB) and Internet Inter-Orb Protocol (IIOP), and the class files include “

Ties”

files.

9. The method of claim 1, wherein the client application uses sockets in communicating with the server and the client requests include remote socket calls.

10. The method of claim 1, wherein the client application is an HTTP application, the client requests include “

GET” and

“

POST”

function calls and the server responses are HTTP responses.

11. A computer program product for use with a computer to record and replay an execution of a client application in a client-server environment, the product comprising a computer readable storage medium having program code embodied therein and operable to:

identify class files used by the client application to process client actions during the execution;

identify data passed in client requests and data returned in server responses during the execution;

record the identified class files and data in a replay file; and

generate a server load based on the replay file during a replay execution.

12. The computer program product of claim 11, further comprising program code operable to re-create client application processes based on the replay file during the replay execution.

13. The computer program product of claim 11, wherein the client requests include remote service and function calls initiated by the client application.

14. The computer program product of claim 11, wherein the returned data include information for identifying the server.

15. The computer program product of claim 14, wherein the server-identifying information includes a server IP address and a port number.

16. The computer program product of claim 11, wherein the client application is a Web service and the class files include dynamic proxy class files.

17. The computer program product of claim 11, wherein the client application uses sockets in communicating with the server and the client requests include remote socket calls.

18. A common recorder for recording and replaying an execution of a client application in a client-server environment, comprising:

a component for identifying class files used by the client application to process client actions during the execution;

a component for identifying data passed in client requests and data returned in server responses during the execution;

a component for recording the identified class files and data in a replay file; and

a component for generating a server load based on the replay file during a replay execution.

19. The common recorder of claim 18, further comprising a component for re-creating client application processes based on the replay file during the replay execution.

20. The common recorder of claim 18, wherein the client requests include remote service and function calls initiated by the client application.