TFS 2010 Build’s fail to GET files larger than 2MB

July 24th, 2010

You might find that in TFS 2010 your builds fail whever they attempt to GET a file over 2MB in size. This ocurrs if you’re using IIS7.5 (on Windows Server 2008 R2) and is in fact another IIS bug, and not a TFS 2010 Problem.

This issue occurs because the idle connection time-out for the HTTP service expires prematurely. This causes the network connection to disconnect unexpectedly. You will get a message through Visual Studio informing you which files failed to download. Usually with this error message:

Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host

To solve this issue, you’ll need to install a patch on one (or all) of your Application Tier Servers. The patch and conditions for install can be found here

One Response to “TFS 2010 Build’s fail to GET files larger than 2MB”

  1. daria_usatjuka on July 27, 2010 7:48 pm

    it was very interesting to read
    I want to quote your post in my blog.

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