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ASP.NET stops responding after executing a database query which is time consuming

Hi,

I have a asp.net webpage which has aroud 20 steps as hyperlink.

when start button is clicked, then step1 starts which does some
operation in db and returns some value, based on that value i post the
same page again to execute the next step. This continues untill the
20th step is executed. Now some steps, take lot of time to execute some
queries(9 million row updates) in the database. So asp.net stops
responding and do not continue to next step eventhough the db operation
for that step is completed.

I have tried increasing the executiontimeou t property but the problem
still exists.

Has anyone faced this problem? What are the possible solutions?

I use AP.NET1.1 on XP box with IIS5.0

any help appreciated.

Thanks
VKJ

Nov 19 '05 #1
6 2171
I'm not sure if you can guarantee the timeout time on the client side
as the client may override your decisions. Why don't you try using
something like AJAX to keep the page alive while the database is
processing?

Nov 19 '05 #2
we are going to UAT in few days and at this point of time i cannot
recommend new stuff like AJAX (just now read abt it and sounds
interesting). All these days when there was less amt of data it was
working fine till 20 steps now as the data is increasing we are facing
this problem. I was hoping if any of process model attributes or
httpruntime attibutes would solve the problem.

Thanks
VKJ

Nov 19 '05 #3
Does the browser/request timeout or the asp.net workerthread?

Nov 19 '05 #4
i'm not sure as to what is timing out.

But here is the scenario.

1)This application is on local m/c.

2)The same application is on dev server.

3) They both connect to same database.

4) Now i run the steps from my local m/c. After the completion of each
step i post back to the same page and update a column against that step
in UI saying that step completed and proceeds to next step with the
status as processing.

5) Now at the same time i open the same page on dev server. whenever
there is no delay there is no problem.

6) But When a step takes long time, then i can see that by refreshing
the page on devserver, that step is completed and it has stopped and
did not proceed to next step.

7) Then i check the local webpage and it is still saying processing.
after refresh i can see that the step is completed but did not proceed
to next step. It did not do a postback even after the step is
completed.This happens to steps which takes longer time (upto 45 min)
and not for steps which takes less time.

Hope this helps in understanding the problem.

Thanks
VKJ

Nov 19 '05 #5
browser/request timeout -- i checked the IIS log and i do not see a
408 error

so i guess it is asp.net workerprocess timing out.

Nov 19 '05 #6
browser/request timeout -- i checked the IIS log and i do not see a
408 error

so i guess it is asp.net workerprocess timing out.

Nov 19 '05 #7

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