Migrated to IIS 6 from IIS 5 and now random timeouts

We have a production website that runs some asp pages that are housed
on a shared DAS drive that multiple IIS servers access, they are load
balanced via a level 2 switch. 1 of the servers is W2K sp4 with IIS
5, the other two servers are W2K3 with IIS 6. All three serve the
pages correctly but randomly (about once or twice a day) the two IIS 6
machines time out. We have a test asp page that is called every 2
minutes for all three machines to check for connectivity.
The details are that the web servers all have the exact same setup,
multiple virtual directories and pages, the two W2K3 machines don't
time out at the same time, and they always are right back up 10
seconds later like they never skipped a beat. The web logs only
mention that the time taken is about 4 to 5 times as long (about 10000
to 20000 Milliseconds) as a normal request takes. Since this doesn't
happen on the IIS 5 box, I doubt it's a network issue, and since it's
random, I don't think it's a permissions issue. Any information you
may have would be great.

On Oct 25, 12:36 pm, Banks1850 <sh... RemoveThis @ebsystems.net> wrote:
> We have a production website that runs some asp pages that are housed
> on a shared DAS drive that multiple IIS servers access, they are load
> balanced via a level 2 switch. 1 of the servers is W2K sp4 with IIS
> 5, the other two servers are W2K3 with IIS 6. All three serve the
> pages correctly but randomly (about once or twice a day) the two IIS 6
> machines time out. We have a test asp page that is called every 2
> minutes for all three machines to check for connectivity.
> The details are that the web servers all have the exact same setup,
> multiple virtual directories and pages, the two W2K3 machines don't
> time out at the same time, and they always are right back up 10
> seconds later like they never skipped a beat. The web logs only
> mention that the time taken is about 4 to 5 times as long (about 10000
> to 20000 Milliseconds) as a normal request takes. Since this doesn't
> happen on the IIS 5 box, I doubt it's a network issue, and since it's
> random, I don't think it's a permissions issue. Any information you
> may have would be great.


Are you using WS03 RTM or WS03 Service Pack # installed.

Is this a client-side or server-side timeout. If you say that web logs
say time-taken is about 4 to 5 times as long as a normal request, then
the timeout is due to the client and there's nothing you can do other
than figure out why the time-taken is 4 to 5 times as long.

How long is the connection timeout set on your application that is
pinging ASP?

What exact code is run in this test ASP page?


//David
http://w3-4u.blogspot.com
http://blogs.msdn.com/David.Wang
//