RequestDispatcher.forward does not work

[arunkumar subramanian]

Steps
1. test.jsp page
2. user presses a button and calls servlet
3. Servlet calls database procedure in DAO
4. servlet forwards the request to same jsp page.

Following is the code in Servlet,

<data base call> - Execute DB procedure - Takes approximately 15 mins
getServletContext()
                    .getRequestDispatcher("/jsps/test.jsp").forward(request, response);

The requestdDispatcher does not work if the database procedure takes more than 10 mins. Please let me know how to rectify this. There is no error, browser just keeps loading and nothing happens. Debug messages before forward was written to the console. Database procedure executes fine.

[Bear Bibeault]

The browser is likely timing out.

Shorten your cycle -- 10 minutes is a ridiculously long time to have a user stare at an unresponsive application. Heck, 10 seconds is a long time.

If you can't shorten the cycle, do the processing it in the background and let the user come back to see the results later.

[arunkumar subramanian]

Thanks for your reply. Is there a way I can set time out in browser to be like 30 mins.

[Bear Bibeault]

No. Besides, how would you get your users to do that?

[Bosun Bello]

As Bear suggested, you need to shorten the client wait time. 10 minutes is a very long time. Can you may be bring back partial information and then make another call to the database if the user indicates so. Most users will nto wait for 10 minutes anyway.

[arunkumar subramanian]

Thanks for your replies. I will try the one as you all said

[kamlesh yadav]

the parameter for setMaxInactiveInterval is expressed in seconds, whereas the one in the deployment descriptor is in minutes.

When we configure session timeout in web.xml, it is applicable to all the sessions created.

When we call setMaxInactiveInterval(int interval) on a session object, then the timeout is set only for that specific session object.

If you have specified a timeout value in web.xml and also calling setMaxInactiveInterval(int interval) on a session object, then for that session object, value set in setMaxInactiveInterval() will be considered for timeout.

[RaviNada Kiran]

Try setting Headers like connection keep-alive and also set the parameter for connection Time out in your server also .

Let me know whats the server you are using ??I may help you.

[Bauke Scholtz]

You should not do let it take that long time. Around max 3 seconds is an acceptable response time. Otherwise users will likely abort the request. I suggest to let run it in the background and if necessary inform the end user about the status using ajaxical polls.

[RaviNada Kiran]

Yes Bauke is Right.

Nobody will stick to your site if it takes such a long time .
This site is very much faster compared to sun site (sun takes a lot of time to login also) dont know why