Error when uploading a file to the media library

Question

I'm getting the following message when uploading a file to the Media Library:

The file "xxxx.jpg" is too big to be uploaded.
The maximum size of a file that can be uploaded is -205,824 bytes.

I've tried to max every setting on the web.config, but I have the same result: https://blog.horizontalintegration.com/2012/04/20/sitecore-media-library-upload-errors/

What strikes me is where is that negative value coming from?

EDIT

I've decompiled the dll where this error is being thrown: Sitecore.Shell.Applications.FlashUpload.Simple.

The error is being thrown here:

long databaseUploadSize = Settings.Upload.MaximumDatabaseUploadSize;
if ((long) num > databaseUploadSize)
{
    string text = Translate.Text("The file \"{0}\" is too big to be uploaded.\n\nThe maximum size of a file that can be uploaded is {1}.", (object) filename, (object) MainUtil.FormatSize(databaseUploadSize));
    this.WarningMessage = text;
    SheerResponse.Alert(text);
}

Apparently there is something wrong when Sitecore tries to read the Media settings. I've tried to modify them but no luck. It seems they are being read from somewhere else or it is not being able to read them from the config file.

databaseUploadSize has a negative number.

Answer 1

Found the issue. httpRuntime maxRequestLength="2147483647"

That value should be set on Kb and not bytes, and Sitecore is doing the following calculation:

  public static long EffectiveMaxRequestLengthBytes
  {
    get
    {
      return (long) ((Settings.Runtime.MaxRequestLength - 200) * 1024);
    }
  }

And then:

  public static long MaximumDatabaseUploadSize
  {
    get
    {
      return Math.Min(Settings.Media.MaxSizeInDatabase, Settings.Runtime.EffectiveMaxRequestLengthBytes);
    }
  }