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Because I'm stumped...

The client needs to be able to upload large images to a library but the upload fails after 5-6MB (over my poor connection). It seems to be timing out as the filesize at fail isn't consistent.

The setup is a form which is accepted by PHP. I've googled and played with php.ini and everything is set for big uploads and long timeouts. Platform is a dedicated windows server at GoDaddy.

What's going wrong?

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3 Answers 3

Ensure these two settings in PHP are set:

  • upload_max_filesize - should be a little larger then the biggest file you expect
  • post_max_size - this needs to be larger then upload_max_filesize
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Been there, done that. They're both set to 80MB so I don't think that's the problem. Also, if I was running up against an upload limit I'd expect it to fail at the same number of bytes each time. –  Dan Feb 23 '10 at 0:36

Problem solved!

After TWO YEARS of on-and-off wrestling with this server I discovered that the app pool was set to time out at 5 minutes. Now I get a 500 error when the file finishes but I'm better equipped to deal with that.

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Dpeending on what version of windows you are running (IIS 7), you may also need to adjust the request filtering module.

By default it cuts off at 5 MB or so. To change open an administrative command prompt:

C:\Windows\System32\inetsrv>appcmd set config -section:requestFiltering -requestLimits.maxAllowedContentLength:1048576

The size is in bytes.

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Sounds good, I'm going to try that tonight. –  Dan May 3 '10 at 2:35

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