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• 04-12-2008, 2:03 AM

  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9

  WebDav problems with high number of files/folders Reply Contact I am trying to migrate from IIS6 WebDav to IIS7 WebDav.  I do not use it for publishing but rather for the "Web Folder" function.  My issue is that I have the system configured and working except if i try to view a folder in explorer that contains a large number of folders I get a "Documents in the folder are not available message".  The issue also seems to occur if the files in the folder are very large.  This issue does not occur in IIS6.  Back with IIS5 and IIS6 I got that error this same error if I tried to use virtual directories combined with WebDav and fqdn, but that is not the case here. I reported that bug to MS back in 2004 and this is the KB for it.  http://support.microsoft.com/kb/895248 I am using a single UNC folder, basic authentication over SSL port 443, SSL is Required, WebDav authoring is enabled for All Content and All Users, Read/Write/Source, Allow unknown MIME type is set to true, etc.  No errors are logged in the Failed request tracing logs.   I have IIS6 and IIS7 in VMs pointed to the same UNC path trying to determine which option in IIS7 will resolve this. Are there any additional server side configuration changes or registry settings I can adjust that may fix this?  I am using XP Pro SP2 clients for my testing.

• 04-12-2008, 11:41 AM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9	Re: WebDav problems with high number of files/folders Reply Contact On further extensive investigation and testing, the issue appears to be a result of overall folder depth combined with the number of files/folders in a folder.  Im still investigating but this is definately reproducable.

• 04-15-2008, 12:28 PM

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  eokim Joined on 02-22-2008, 7:31 PM Posts 20

  Re: WebDav problems with high number of files/folders Reply Contact How many files are you testing? I tried to reproduce with 2000 files x 1 kb on UNC Vdir. It works for me.  It might be client setup issue. Go to http://learn.iis.net/page.aspx/386/using-the-webdav-redirector/ and go over WebDAV Redirector Registry Settings section. Especailly, FileAttributesLimitInBytes and FileSizeLimitInBytes registry value. My vista sets FileAttributesLimitInBytes with 4MB and retrieved PROPFIND response with content length 1183740 bytes OK.

• 04-25-2008, 1:22 PM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9

  Re: WebDav problems with high number of files/folders Reply Contact I am attempting to reproduce the exact conditions but it is slow going.  The WebDav server is a Windows 2008 32bit server connected to a Windows 2003 R2 UNC path and it is a hidden share.  The share permissions are everyone ' Full' and the NTFS permissions are the Windows 2003 defaults:  Administrators 'Full', Users 'Read, execute, System 'Full' and Creator/Owner 'Special.  I made some initial tests of just copying multiple excel files into a long directory structure about 7 levels deep with roughly 350 excel files at each level and I was not able to reproduce the issue. In an attempt to eliminate any possible target server issues I am copying the entrie folder structure (approximately 200GB) to another server and then I will test re-acling the entire folder structure, testing hidden vs non-hidden shares etc.  I will update you on my findings.

• 04-25-2008, 2:01 PM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9	Re: WebDav problems with high number of files/folders Reply Contact *** I FOUND IT *** This issue is reproducable if any file name within the folder has the & character in it!  I have tested with several other extended characters but this one is the confirmed culprit in my case.  Again, this only affects Windows 2008 with Webdav.  Windows 2000 and 2003 do not have the issue.

• 04-25-2008, 5:08 PM

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  eokim Joined on 02-22-2008, 7:31 PM Posts 20	Re: WebDav problems with high number of files/folders Reply Contact Unfortunately, that's the known bug we recently discovered. It has been fixed, and will be released in next milestone. Thank you.

• 04-25-2008, 5:52 PM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9	Re: WebDav problems with high number of files/folders Reply Contact Is there a timeframe for the next milestone release and/or is a hotfix available from PSS?   This bug is the only issue that is preventing me from deploying 2008 across our farms.

• 04-27-2008, 9:02 PM

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  robmcm Joined on 05-26-2006, 9:05 PM Redmond, WA Posts 85	Re: WebDav problems with high number of files/folders Reply Contact There is no hotfix available from PSS that addresses this issue. As Eok mentioned we just discovered this a few weeks ago. At the moment we are still researching a couple of other small issues that we would like to bundle together into a single hotfix that we hope to release soon, but we do not have an ETA. Robert McMurray

• 05-30-2008, 10:03 AM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9	Re: WebDav problems with high number of files/folders Reply Contact Has there been any progress with getting a hotfix or updated installer to resolve this issue?

• 06-02-2008, 6:43 PM

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  robmcm Joined on 05-26-2006, 9:05 PM Redmond, WA Posts 85	Re: WebDav problems with high number of files/folders Reply Contact We are still working on a rollup package that will contain this fix. Thanks! Robert McMurray
  	Tags: WebDAV

• 07-07-2008, 9:23 PM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9	Re: WebDav problems with high number of files/folders Reply Contact Has any progress been made on this?  Given that 3 months have passed I wold expect that at least a hotfix would now be available
  	Tags: WebDav IIS7 Bug ampersand

• 07-07-2008, 9:28 PM

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  robmcm Joined on 05-26-2006, 9:05 PM Redmond, WA Posts 85	Re: WebDav problems with high number of files/folders Reply Contact Yes, we have a hotfix that addresses that specific issue already, but we are also working on another issue that we want to release in the same update package. Robert McMurray

• 07-11-2008, 10:48 AM

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  ThomasTrain Joined on 04-12-2008, 5:34 AM Posts 9	Re: WebDav problems with high number of files/folders Reply Contact Can we get the hotfix for this specific issue released instead of forcing us to wait for a 'roll-up' package?

• 07-11-2008, 1:06 PM

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  robmcm Joined on 05-26-2006, 9:05 PM Redmond, WA Posts 85	Re: WebDav problems with high number of files/folders Reply Contact I've been trying to contact you to set that up by using private messages from your contact information - perhaps a junk filter is blocking emails from this site? I will try again. Robert McMurray

• 07-23-2008, 4:29 PM

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  robmcm Joined on 05-26-2006, 9:05 PM Redmond, WA Posts 85	Re: WebDav problems with high number of files/folders Reply Contact Just an FYI - the WebDAV update has been officially released - and the final download packages are available at the following URLs: WebDAV Update (x86) Installation Package http://go.microsoft.com/fwlink/?LinkId=122475 WebDAV Update (x64) Installation Package http://go.microsoft.com/fwlink/?LinkId=122476 Robert McMurray
  	Tags: WebDAV