IIS 5 & IIS 6
IIS 6.0 Stops Serving Pages
Last post Aug 30, 2008 02:45 PM by stenhet
Jul 18, 2007 05:21 PM|stenhet|LINK
About once per week IIS 6 on Server 2003 simply stops serving pages.
Nothing in any of the logs, no error messages. IIS Manager reports all sites running, all app pools running. No processes eating up resources that I can see, normal cpu/memory useage.
All services are reported as running. I can remotely access the server with no problem. Email server is also on this box and it continues to run.
Any ideas? Any ideas on how to troubleshoot this...
Jul 19, 2007 06:07 AM|steve schofield|LINK
Hmm. Do you have proactive recycling in-place say recycle processes once a day? Does recycling the process resolve the problem? What errors do you get when you try to browse? I would look in the HTTPErr.log (c:\windows\system32\logfiles\httperr) and see
if anything is listed.
Windows Server MVP - IIS
Log archival solution
Install, Configure, Forget
Jul 20, 2007 11:45 AM|stenhet|LINK
Yes, its set at the default of 29 hours and obviously doesn resolve the problem.
Get the standard 400 page not available error on every site.
I see a bunch of connection refused entries, but nothing else.
Jul 26, 2007 12:24 PM|Andy1612|LINK
Its sounds like a driver on the webserver is utilising all of your allocated NPP memory. See the link below, it may help you find out if this is the case, if it is it may also assist with detecting the rouge driver......
Jul 26, 2007 03:45 PM|stenhet|LINK
Yea, that was my guess as well. I've been using some memory tools to find what the problem might be.
Its just strange that everything else, email, mysql, etc works - IIS manager shows the sites as running..., but IIS simply ceases to deliver static html pages.
Thanks for the response.
Jul 26, 2007 04:24 PM|steve schofield|LINK
I've used that article and poolman.exe to track down memory leaks. Great tool! I would investigate your monitoring agents, hardware agents and any other 3rd party software (Anti-virus).
Jul 26, 2007 04:35 PM|stenhet|LINK
I really think its MySql (Even, TCPc) tag... but also the File tag is the biggest user (File handles??). Again, it may be MySql.
The latest MySql uses about 65000 handles on my server compared to 16000 on previous version. No Max versions ae in this distribution. Also, I can't get any response from anyone on the MySql forums in this regard.
Thanks again for the assistance.
Aug 30, 2008 02:45 PM|stenhet|LINK
I'm still struggling with this problem, believe it our not.
Something is eating up non-paged memory, but I can't find out what.
I've closed every service possible with no change in npp #'s.
NONE of the processes indicate any increase in npp. NPP increases about 40% in 24 hours and about 20% a day thereafter...
used memtriage, procexp, poolmon, etc...
Memtriage/poolmon indicates FILES tag, TCPc, tag - but haven't a clue which process is adding the files. I turned off the service for EVERYTHING I can with no decrease in the NPP... doesn't release the memory.
Mysql has been updated. Turned off no change in npp. No errors in any error file, no events... I've searched the net endlessly.
Are there any tools that will dissect the npp memory area and tell me what is actually taking up the space?
Any other ideas from anyone?