Knowledge Base

Unable to upload large files to website hosted on Plesk for Linux server: End of script output before headers

Uploading large files to a website hosted on a Plesk for Linux server (for example, via WordPress Media Library) fails:

HTTP error
The following error is found in Domains > example.com > Logs or in the file /var/www/vhosts/example.com/logs/error_log:

[core:error] [pid 4820] [client 203.0.113.2:33236] End of script output before headers: sdn_data.php, referer:
All necessary limits are set correctly in Domains > example.com > PHP Settings (they are saved in the domain's PHP configuration file):

# grep -e 'memory_limit' -e 'upload_max_filesize' -e 'post_max_size' -e 'file_uploads' /var/www/vhosts/system/example.com/etc/php.ini
file_uploads = on
upload_max_filesize = 256M
post_max_size = 256M
memory_limit = 256M
max_file_uploads = 20
The communication timeout limit has a sufficient value in the Apache configuration file /etc/httpd/conf.d/fcgid.conf:

# grep 'FcgidIOTimeout' /etc/httpd/conf.d/fcgid.conf
FcgidIOTimeout 320

The directive LimitRequestBody is define in the Apache configuration, domain's Apache & nginx Settings, or in the file .htaccess.

The directive LimitRequestBody specifies the number of bytes from 0 (meaning unlimited) to 2147483647 (2GB) that are allowed in a request body.

Log into Plesk.
Increase the value of the parameter LimitRequestBody where it specified:
- in Apache directives: Domains > example.com > Apache & nginx Settings > Additional Apache directives:
- in the file .htaccess: Domains > example.com > File Manager > .htaccess:

Connect to the server using SSH.
Open the Apache configuration file for editing:
- /etc/httpd/conf/httpd.conf on CentOS, RHEL, CloudLinux.
- /etc/apache2/apache2.conf on Ubuntu and Debian.
Increase the value of the parameter LimitRequestBody and save the file:

LimitRequestBody 2147483647
Restart Apache to apply the changes:
- on CentOS, RHEL, CloudLinux:
  
  # service httpd reload
- on Ubuntu and Debian:
  
  # service apache2 reload