Cobra Forum

Question: Can't upload large files over PHP in Plesk: HTTP request length exceeds MaxRequestLen


Applicable to:

• Plesk for Linux

Symptoms

• Uploading large files through PHP apps to a Plesk domain fails: 500 Internal Server Error, 502 Bad Gateway
• The domain's Apache error log shows this message if nginx support is enabled:

mod_fcgid: HTTP request length ... (so far) exceeds MaxRequestLen (1310720)


• The domain's nginx error log shows this message:

• upstream prematurely closed connection while reading response header from upstream

Cause

The Apache parameters FcgidMaxRequestLen and FcgidMaxRequestInMem have too low of a value for the file's size.


Resolution

Individual Domain
     
1.Log into Plesk

2.Go to Domains > example.com > Apache & Nginx settings

3.Add these lines to Additional directives for HTTP & HTTPS:

<IfModule mod_fcgid.c>
FcgidMaxRequestLen 1073741824
FcgidMaxRequestsPerProcess 100
FcgidProcessLifeTime 7200
FcgidIOTimeout 7200
FcgidMaxRequestInMem 1073741824
</IfModule>
All Domains

The following solution only works with FPM application served by Apache. For other handlers, use custom templates.

1.Connect to the server via SSH

Note: Contact the server administrator if there's no SSH access

2.Edit fcgid.conf:

• RHEL-based OS: /etc/httpd/conf.d/fcgid.conf
• Debian based OS: /etc/apache2/mods-available/fcgid.conf

3.Set the same value for FcgidMaxRequestLen and FcgidMaxRequestInMem in bytes. For example, 1073741824 for 1G.

4.Restart Apache:

Warning: Websites will be down for a short time while restarting Apache

For RHEL-based OS

# service httpd restart || service apache2 restart