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• 03-04-2009, 11:21 AM

  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64

  Pages appear to stop responding Reply Contact We're running IIS7 on WS08.  I have experienced SEVERAL times when I'm accessing a page on this server where it will simply stop responding.  The load progress bar will show no progress at all, and after a minute or two, I finally stop it.  I can either refresh the browser (which usually immediately brings the page up), or go directly to the page or a different page on the same web site.  I have seen this happen on standard html pages as well as asp and asp.net (2.x) pages.  It happens most of the time on pages that I've just changed, but I've seen it happen on pages that I have not changed in quite a while. I have checked the event log when this happens, and there are no entries in there indicating any errors of any kind. I usually access this server across the network, so instead of a standard "www.mysite.com", I usually do a "http://myserver/myfolder/mypage.htm" sort of thing.  But, I believe I've seen this problem when accessing it both ways. We have some of the same apps running on a WS03 server perfectly. 1) Any idea what is causing this? 2) If there are no ideas,  are there any testing methods anyone can suggest to help me figure this out? Thanks, Jesse

• 03-04-2009, 1:03 PM

  In reply to

  anilr Joined on 05-23-2006, 10:13 PM Redmond, WA Posts 2,343	Re: Pages appear to stop responding Reply Contact Use failed request tracing - it should pinpoint where the request processing is getting stalled. Anil Ruia Senior Software Design Engineer IIS Core Server

• 03-04-2009, 2:48 PM

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  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64	Re: Pages appear to stop responding Reply Contact Thanks, I've just enabled that.  I've set it to log situations where it takes longer than 2 minutes to respond to a request.  I'll check the log when I run into it again (after waiting 2 minutes, of course), and see what I get. Jesse

• 03-10-2009, 10:19 AM

  In reply to

  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64

  Re: Pages appear to stop responding Reply Contact OK.  I've "got one on the line".  I have Failed Request Tracing turned on, and I've set it to a time limit of 2 minutes.  Here's the problem.  2 minutes came and went.  It did not respond, nor did it fail.  However, after more than 5 minutes,it finally responded and displayed the screen as it should have. There were no errors or anything, just an incredibly long delay before it displayed the correct screen.  There is nothing in the Failed Request Log (I suppose, because it didn't fail). Any ideas how I can figure out why this thing took 5 minutes to respond when it should have taken only a second or two at the most? Thanks, Jesse

• 03-10-2009, 12:57 PM

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  anilr Joined on 05-23-2006, 10:13 PM Redmond, WA Posts 2,343	Re: Pages appear to stop responding Reply Contact What does the time taken field in IIS log say - can you get failed request trace if you remove the "2 minutes" condition just add a condition for all status-codes "200-999". Anil Ruia Senior Software Design Engineer IIS Core Server

• 03-10-2009, 1:21 PM

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  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64

  Re: Pages appear to stop responding Reply Contact  Here is the first entry from the log that accesses the page that had a long delay: 2009-03-10 14:22:03 192.168.1.8 GET /dlg/tsanat/HSMSConfPayment.aspx - 80 - 192.168.1.105 Mozilla/5.0+(Windows;+U;+Windows+NT+5.1;+en-US;+rv:1.9.0.7)+Gecko/2009021910+Firefox/3.0.7 200 0 0 1716  Don't know how to read this log entry, but the number at the end (which could be the time??) can't be seconds, and I wouldn't think it would be mili-seconds either.  It was just a little over 5 minutes, and that doesn't match with this. Any ideas? Thank, Jesse

• 03-10-2009, 2:52 PM

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  ianderson Joined on 09-23-2003, 7:53 PM Posts 22

  Re: Pages appear to stop responding Reply Contact I have encountered the same issue and believe it is specific to recent versions of FireFox (3.0.6+) and IIS7-hosted websites. I posted the following on a FireFox board, but didn't garner much response: http://support.mozilla.com/tiki-view_forum_thread.php?locale=en-US&forumId=1&comments_parentId=282453 I believe there is some issue with the way FireFox and IIS7 interact with regard to connection handling. Failed request tracing is not much help in this situation as it only lists that the request has "NO_END" in the BEGIN_REQUEST stage of processing. The issue appears to be intermittent (at least for me) but it happens frequently enough to cause user problems and complaints. I have no idea where to go next to resolve this problem and hope that MS will help figure out what the root cause of this issue is. -Ian

• 03-10-2009, 5:19 PM

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  anilr Joined on 05-23-2006, 10:13 PM Redmond, WA Posts 2,343

  Re: Pages appear to stop responding Reply Contact That is in milliseconds - so 1.7sec - can you collect a netmon trace when the problem happens.  Also, to be sure, you are running a server sku of IIS - the client skus (vista) have limits on number of concurrent connections so you may have requests getting queued while earlier requests are being processed. Anil Ruia Senior Software Design Engineer IIS Core Server

• 03-10-2009, 5:35 PM

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  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64

  Re: Pages appear to stop responding Reply Contact  I can tell you that the request took a lot longer than 1.7 seconds to process.  I timed it, and while I didn't get the exact second that it stopped, I know it was more than 5 minutes.  So, that being the case, maybe IIS responded but for some reason the browser didn't pick up on it?  It sounds a lot more like the fellow might be correct about it being an issue with IIS7 and Fire Fox (and maybe IE7?) not talking with each other?  This is an IIS7 issue, because this app works fine with IIS6. How do I run a "netmon trace"? What do you mean by "running a server sku of IIS"? As far as concurrent connections, I seriously doubt that I had very many people connected at the time.  I do run several web sites on the machine, but it's use mainly for development.  If I had to guess, there may have been 6 or 7 people connected at the most.Plus, I can be almost 100% sure that no one was accessing this particular application at the time, because this was a development folder that no one accesses but me (except rarely someone else would, but most likely not today). Jesse

• 03-10-2009, 5:42 PM

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  anilr Joined on 05-23-2006, 10:13 PM Redmond, WA Posts 2,343	Re: Pages appear to stop responding Reply Contact netmon download link I mean you are running on windows server 2008 and not vista. Anil Ruia Senior Software Design Engineer IIS Core Server

• 03-10-2009, 7:48 PM

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  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64	Re: Pages appear to stop responding Reply Contact  OK. downloaded and installed.  I guess I'll wait for the next problem and then run netmon. Yes, I'm runing WS08, not Vista. Jesse

• 03-10-2009, 7:57 PM

  In reply to

  anilr Joined on 05-23-2006, 10:13 PM Redmond, WA Posts 2,343	Re: Pages appear to stop responding Reply Contact Btw, to use netmon, you will need to browse from an external machine - netmon cannot capture traffic over localhost. Anil Ruia Senior Software Design Engineer IIS Core Server

• 03-10-2009, 8:03 PM

  In reply to

  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64	Re: Pages appear to stop responding Reply Contact  Will browsing from a different machine on the same network work?  I usually do http://mymachine/myapp/mypage.aspx (for instance).  Jesse

• 03-11-2009, 10:22 AM

  In reply to

  VorlonShadow Joined on 12-27-2007, 1:19 PM Posts 64

  Re: Pages appear to stop responding Reply Contact OK.  Assuming that browsing to the server from another machine on the network is OK... I had it happen again. I then ran netmon and let it run for an entire 10 minutes.  It never did respond, and I got tired of waiting, so I hit the browser stop button to stop it.  However, I did save the captured netmon output.  What should I be looking for? Personally, I'm thinking that whatever the problem was that caused it had already occurred by the time I started netmon.Because by the time I notice that it's not responding, I'm thinking the problem has already occurred and it's already too late to start netmon.  At any rate, if there's something here that I should look for, let me know what it is. Thanks, Jesse

• 03-12-2009, 10:33 AM

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  ianderson Joined on 09-23-2003, 7:53 PM Posts 22

  Re: Pages appear to stop responding Reply Contact Anil, if you are looking for an example you can see it by downloading FireFox and browsing to our corporate website: www.winebid.com. Click the Search button to get a listing of results. You'll notice that the page comes back very quickly. You can click next/prev links to navigate quickly between subsequent search result pages. However, if you stop on a particular page and wait over 60 seconds, and then click the prev or next link FireFox will hang as described. It doesn't happen all the time, but most of the time under these circumstances. The pages do eventually respond... but only after minutes of nothing but a spinning progress indicator. Because the problem (at least in our circumstance) happens only after some period of inactivity, it leads me to believe that it has to do with how IIS7/FireFox handle the connection. Could IIS7 be timing out a connection that FireFox thinks is still open for use? I know nothing of the inner workings of either so that is just a guess based on observations. The problem is clearly reproducable though, and does not happen with Internet Explorer or Safari... only FireFox and only recent builds.