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Load Runner Correlation
What is Correlation in Load Runner?


  
Total Answers and Comments: 1 Last Update: April 29, 2009     Asked by: a_official 
  
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 Best Rated Answer
Submitted by: alka.nagar
 
Many applications use dynamic values that change each time we use the application. For example, some servers assign a unique session ID for every new session. When we try to replay a recorded session, the application creates a new session ID that differs from the recorded session ID. LoadRunner addresses this issue through correlation. Correlation saves the changing values, in our case the session ID, to a parameter. When running the emulation, the Vuser does not use the recorded value - instead, it uses the new session ID, assigned to it by the server.

Above answer was rated as good by the following members:
ursnnk
April 29, 2009 01:48:19   
alka.nagar Member Since: April 2009   Contribution: 1    

RE: Load Runner Correlation
Many applications use dynamic values that change each time we use the application. For example some servers assign a unique session ID for every new session. When we try to replay a recorded session the application creates a new session ID that differs from the recorded session ID. LoadRunner addresses this issue through correlation. Correlation saves the changing values in our case the session ID to a parameter. When running the emulation the Vuser does not use the recorded value - instead it uses the new session ID assigned to it by the server.
 
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