Applicable to:
- Plesk for Linux
Symptoms
-
When using PHP as FastCGI, if you try to upload a large file, the below error occurs and causes
550 internal server erroror502 Bad Gateway. -
If nginx support is enabled, Apache
/var/www/vhosts/system/example.com/logs/error_logcontains the following error:mod_fcgid: HTTP request length ... (so far) exceeds MaxRequestLen (1310720)
-
Nginx
/var/www/vhosts/system/example.com/logs/proxy_error_logcontains the error below:upstream prematurely closed connection while reading response header from upstream
Cause
The [FcgidMaxRequestLen](https://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#fcgidmaxrequestlen) and/or FcgidMaxRequestInMem directives are not large enough.
Resolution
Click on a section to expand
This only works with FPM application served by Apache, otherwise use custom templates
-
Connect to the server via SSH.
Note: if direct SSH access to the server is not possible, contact server administrator for further assistance.
-
Edit
fcgid.conffile which is located in/etc/httpd/conf.d/(for RHEL based OS) or/etc/apache2/mods-available/(for Debian based OS). -
Set
FcgidMaxRequestLenandFcgidMaxRequestInMemwith the same values in bytes. For example, 1024 MB corresponds to 1073741824 B. -
Restart Apache:
For RHEL based OS
# service httpd restart
For Debian based OS:
# service apache2 restart
:::
Click on a section to expand
-
Log into Plesk
-
Go to Domains > example.com > Apache & Nginx settings > Additional directives for HTTP & HTTPS
<IfModule mod_fcgid.c>
FcgidMaxRequestLen 1073741824
FcgidMaxRequestsPerProcess 100
FcgidProcessLifeTime 7200
FcgidIOTimeout 7200
FcgidMaxRequestInMem 1073741824
</IfModule>
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