Uploading files with fcgi enabled and getting MaxRequestLen error

While trying to upload an image file that was about 700 KB, I kept getting an error. The server log recorded an error that said:

mod_fcgid: HTTP request length 139258 (so far) exceeds MaxRequestLen

This was even though I had set ATTACHFILESIZELIMIT in SitePreferences to 10000.

Researching this, I discovered that fcgi has it's own de facto file upload limit. It can be over-ridden by adding this to your foswiki apache configuration file:

<IfModule mod_fcgid.c>
# to get around upload errors when uploading images increase the MaxRequestLen size to 15MB
  MaxRequestLen 15728640

</IfModule>

Here's documentation of the fcgi MaxRequestLen setting which mentions this issue:

• http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#fcgidmaxrequestlen

-- LynnwoodBrown - 01 Feb 2012

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