Re: Problems with IIS 6.0 and downloading images.
From: Amil Hanish (amilhanish_at_hotmail.com)
Date: 12/01/04
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Date: Tue, 30 Nov 2004 17:45:07 -0700
First, the website is in it's own app pool with default settings. The site
is extremely light...like maybe 1-2 users per day. But, when testing, I can
reproduce this problem soooo easy. I don't know how to view the current
connections to this specific site and how to look at the app pool real time.
Any help would be appreciated.
Amil
"David Wang [Msft]" <someone@online.microsoft.com> wrote in message
news:#VQsxX9wEHA.3624@TK2MSFTNGP09.phx.gbl...
> What is your AppPoolQueueLength on the AppPool, and what does it look like
> during this slow time. How many connections are maintained on the server
> during this time as well.
>
> Also, consider turning off KeepAlives to prevent stress clients from
hanging
> on to connections (and system resources), especially if the servers just
> serve up images.
>
> Are your JPG/GIF files on the server's HDD or on some attached UNC share?
>
> > A process serving application pool 'DefaultAppPool' exceeded
> > time limits during shut down. The process id was 'XXX.
> This indicates that at least one request to an application served by this
> ApplicationPool took over 90 seconds and did not finish (90 seconds is
> default shutdown time limit).
>
> > A worker process with process id of 'XXXX' serving application
> > pool 'DefaultAppPool' has requested a recycle because the
> > worker process reached its allowed processing time limit.
> This is the periodic restart time limit. This would be expected. I
believe
> this is not logged to the event log unless you change configuration to do
so
> (because prescriptive recycles are normally not logged -- only
> reactive/unexpected recycles are logged).
>
> Seeing these things together, it suggest that something on the server
seems
> to be in an infinite loop or taking a lot of time. Mostly likely a hang
of
> something that is running on the server. I would check for any custom
ISAPI
> Filters/Extensions configured on the server.
>
> --
> //David
> IIS
> This posting is provided "AS IS" with no warranties, and confers no
rights.
> //
> "Jacob" <Jacob@discussions.microsoft.com> wrote in message
> news:E319E0EF-C750-4B19-BF1A-F6B26DED83DF@microsoft.com...
> I am having a problem with IIS 6.0. I have not had this problem with 5.0.
>
> I have 9 servers that serve up images only. JPGs and GIFs. No ASP, no
HTML
> files, no ColdFusion. The server is running Windows 2003 (fully patched),
> IIS6, and Norton AV (configured to bypass JPG and GIF extensions for now.)
> Dual Xeon 3.0 GHz, 2 MB RAM, and SCSI U320 Hard Drives. So the server
> hardware is not a problem, I think.
>
> What is happening is that after a while, like maybe 6 hours, the servers
> would take for ever to serve up the images. I could be waiting forever
for
> the images to finish downloading, even on my network. I would have to
stop
> and restart the website to fix it, then the problem will occur again
within
> a
> few hours. This happens across all nine servers. Even with pages the
> request 5 or 6 images.
>
> If I look in the Event Viewer, I see the following two events occurring:
>
> A process serving application pool 'DefaultAppPool' exceeded time limits
> during shut down. The process id was 'XXX.
>
> A worker process with process id of 'XXXX' serving application pool
> 'DefaultAppPool' has requested a recycle because the worker process
reached
> its allowed processing time limit.
>
> I looked int he HTTP log, and I found the following error:
>
> Timer_MinBytesPerSecond
>
> I have changed the MinFileBytesPerSec value to 480, 1000, even 0 (from the
> default 240) in the MetaBase.xml. I have also set the App Pool to recycle
> worker threads every 30 minutes, number for request 35000, max virtual
> memory
> to 768. Idle timeout is 10 minutes and web garden is 2. I have played
with
> the App Pool settings all week and have not come up with a setting that
> works
> for me.
>
> The servers maintain about 40 to 60 simultaneous connections each and the
> servers are not tasked at all. CPU is around 3 to 5% and tons of RAM
> available.
>
> Anybody have any other suggestions? I have googled and try many
> suggestions, but nothing as helped.
>
> Big thanks in advance
> Jacob
>
>
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