running the test plan for every certain time interval

Hello, I have to run my test plan for every 30 minutes on the web application.How can I do?.Is there any way to intiate the testplan from java program. This is the first time Iam working on the Jmeter,plz help me. Thanks in advance. regards amarnath

Query on Cookies n functions

Hello, Iam very much new to this Jmeter.I have 2 querys. first : In my web application I have to login and further process the next pages.After sending Http request with username, password,... Iam not getting the expected page . It is giving responce page as 'Session is invalid'.Here validat

file type to save the results

Hello, Iam new to this Jmeter. In which file type we have to save the results of the application.I have saved the result in *.jmx type, but Iam not able to open the file after start state is completed,it is mentioning 'some application is using this file'.But after completely closing the testpla

User parameters

Hello, Iam very much new to Jmeter, Iam working on a case where according to the value entered in a textbox on the first jsp page ,corresponding text to that value has to be displayed on second jsp. As 'HTTP user parameter modifier' is deprecated Iam planning to use 'User parameters'.But here it