Request Too Large

Question

I am receiving the following error on my page, I updated the IIS setting for posting limit, but can't find how to increase the work buffer size, any help on this would be awesome

Request Too Large
The "POST" request is too large for the internal work buffer:

    The internal work buffer size is 512 bytes.
    The "POST" request size is 2313 bytes. 

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Official status error from firebug: 413 Request Entity Too Large

I am using IIS7.5 for setting up the page

The site is built via .NET MVC4

and I can not reduce the post size, in fact in some cases it only increase.

does anything here:http://stackoverflow.com/questions/9600856/how-to-deliver-big-files-in-asp-net-response help? — Jean-Bernard Pellerin, Jun 07 '13 at 21:58
Not really the post is done via a backend service, I am only the consumer. and can't seem to find anything where the 512 bytes are referenced. — HexBlit, Jun 07 '13 at 22:16

score 2 · Accepted Answer · edited Dec 15 '17 at 20:55

Found the answer, you have to update the UploadReadAheadSize in IIS the article here showed me how to do it from IIS.

http://tips4sysadmins.blogspot.com/2012/12/iis-75-uploadreadaheadsize.html

How to set the uploadReadAheadSize in IIS 7.5

Launch "Internet Information Services (IIS) Manager"

Expand the Server field

Expand Sites

Select the site you want to make the modification for.

In the Features section, double click "Configuration Editor"

Under "Section" select: system.webServer>serverRuntime

Modify the "uploadReadAheadSize" section

Click Apply

Note that the value is in BYTES

Request Too Large

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