Possible to terminate a long request?
Hello: Is there a way to terminate a request that takes more than a given amount of time? I know I can use the java.util.Timer class to get called back at a given point in the future, but how can I terminate the request and put up an error page to the user? Any suggestions will be helpful. Thanks, Neil -- Neil Aggarwal, JAMM Consulting, (972)612-6056, www.JAMMConsulting.com FREE! Valuable info on how your business can reduce operating costs by 17% or more in 6 months or less! = http://newsletter.JAMMConsulting.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Possible to terminate a long request?
What about setting a session timeout value in the application's web.xml (value below is minutes)? session-config session-timeout2/session-timeout /session-config I have not actually used the elements above-- I just looked it up in a book, Tomcat by Brittain and Darwin, published by O'Reilly. I have used session time-outs a lot in WebLogic. -Original Message- From: Neil Aggarwal [mailto:[EMAIL PROTECTED] Sent: Tue 9/23/2003 10:20 AM To: 'Tomcat-User' Cc: Subject: Possible to terminate a long request? Hello: Is there a way to terminate a request that takes more than a given amount of time? I know I can use the java.util.Timer class to get called back at a given point in the future, but how can I terminate the request and put up an error page to the user? Any suggestions will be helpful. Thanks, Neil -- Neil Aggarwal, JAMM Consulting, (972)612-6056, www.JAMMConsulting.com FREE! Valuable info on how your business can reduce operating costs by 17% or more in 6 months or less! = http://newsletter.JAMMConsulting.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Possible to terminate a long request?
Daniel: I appreciate your suggestion, but that wont terminate the request. It will just mean the user's session wont be aroung when they make their next request. Thanks, Neil -- Neil Aggarwal, JAMM Consulting, (972)612-6056, www.JAMMConsulting.com FREE! Valuable info on how your business can reduce operating costs by 17% or more in 6 months or less! = http://newsletter.JAMMConsulting.com -Original Message- From: King,Daniel [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 23, 2003 11:27 AM To: Tomcat Users List Subject: RE: Possible to terminate a long request? What about setting a session timeout value in the application's web.xml (value below is minutes)? session-config session-timeout2/session-timeout /session-config I have not actually used the elements above-- I just looked it up in a book, Tomcat by Brittain and Darwin, published by O'Reilly. I have used session time-outs a lot in WebLogic. -Original Message- From: Neil Aggarwal [mailto:[EMAIL PROTECTED] Sent: Tue 9/23/2003 10:20 AM To: 'Tomcat-User' Cc: Subject: Possible to terminate a long request? Hello: Is there a way to terminate a request that takes more than a given amount of time? I know I can use the java.util.Timer class to get called back at a given point in the future, but how can I terminate the request and put up an error page to the user? Any suggestions will be helpful. Thanks, Neil -- Neil Aggarwal, JAMM Consulting, (972)612-6056, www.JAMMConsulting.com FREE! Valuable info on how your business can reduce operating costs by 17% or more in 6 months or less! = http://newsletter.JAMMConsulting.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Possible to terminate a long request?
If you're trying to do this because of a long-runninig process (like
report generation)...
How about starting a new Thread for the processing, and immediately
returning a page that is a 'status' page with meta refresh. Inside this
status page, you check a few session variables for certain
information/status.
The new Thread is passed the session and a timeout value.
Inside the Thread , you'd perform your processing. Hopefully it would
lend itself to the following logic:
if(!done requestTimer timeout) {
// do processing of request
}
inside the loop you could set some session variable ('percent_done') if
you wanted to have the refreshing status page provide feedback. Also set
a 'status' variable, something like running, complete, failed or
timeout.
The refreshing status page will check the status variable, and on each
refresh, you can forward to any number of pages, depending on the
current state of 'status'. If it's still running, you'd redisplay the
status page, with perhaps an indication of 'percent_done'. Alternate to
forwarding, you can use the same status page to report all statii, only
when your status switches from running to any other status, have the
JSP remove the meta refresh.
-Original Message-
From: Neil Aggarwal [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 23, 2003 11:38 AM
To: 'Tomcat Users List'
Subject: RE: Possible to terminate a long request?
Daniel:
I appreciate your suggestion, but that wont terminate the
request. It will just mean the user's session wont be aroung
when they make their next request.
Thanks,
Neil
--
Neil Aggarwal, JAMM Consulting, (972)612-6056,
www.JAMMConsulting.com FREE! Valuable info on how your
business can reduce operating costs by
17% or more in 6 months or less! =
http://newsletter.JAMMConsulting.com
-Original Message-
From: King,Daniel [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 23, 2003 11:27 AM
To: Tomcat Users List
Subject: RE: Possible to terminate a long request?
What about setting a session timeout value in the
application's web.xml (value below is minutes)?
session-config
session-timeout2/session-timeout
/session-config
I have not actually used the elements above-- I just looked
it up in a book, Tomcat by Brittain and Darwin, published by
O'Reilly. I have used session time-outs a lot in WebLogic.
-Original Message-
From: Neil Aggarwal [mailto:[EMAIL PROTECTED]
Sent: Tue 9/23/2003 10:20 AM
To: 'Tomcat-User'
Cc:
Subject: Possible to terminate a long request?
Hello:
Is there a way to terminate a request that takes more than
a given amount of time?
I know I can use the java.util.Timer class to get called back
at a given point in the future, but how can I terminate the
request and put up an error page to the user?
Any suggestions will be helpful.
Thanks,
Neil
--
Neil Aggarwal, JAMM Consulting, (972)612-6056,
www.JAMMConsulting.com
FREE! Valuable info on how your business can reduce
operating costs by
17% or more in 6 months or less! =
http://newsletter.JAMMConsulting.com
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