If you try to upload a file through http to your web site running on Apache2/PHP5/mod_fcgid, and in your browser you get the error:
Error 500, Internal server error
In Apache’s error log you see something like
[Fri Jun 26 15:14:15 2011] [warn] [client 188.8.131.52] mod_fcgid: HTTP request length 131484 (so far) exceeds MaxRequestLen (131072), referer: ...
First check in your php.ini that upload_max_filesize has a big enough value for your upload. By default it’s
upload_max_filesize = 2M
Then open your Apache vhost configuration and add the FcgidMaxRequestLen directive with a big enough value (in bytes), for example
which equals roughly 2 MB.
The default value is
which is very small (see http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#fcgidmaxrequestlen).
Finally restart Apache.