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Article ID: 121251, created on Apr 22, 2014, last review on Dec 15, 2015

  • Applies to:
  • Plesk 12.5 for Linux
  • Plesk 12.0 for Linux
  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 10.4 for Linux/Unix


A domain is not loading and a "500 internal server error" is being shown after 45-60 seconds.

The following error can be observed in the domain's /logs/error_log:

[Thu Feb 12 17:07:06 2014] [warn] [client] mod_fcgid: read data timeout in 45 seconds, referer: http://www.example.com/admin/orders.php
[Thu Feb 12 17:07:06 2014] [error] [client] Premature end of script headers: PDF.php, referer: http://www.example.com/admin/orders.php


The following error in /var/log/apache2/error.log:

[Thu Jan 16 08:13:45 2014] [warn] mod_fcgid: process 16576 graceful kill fail, sending SIGKILL


The FcgidIOTimeout value - the maximum period of time the module will wait while trying to read from or write to a FastCGI application - has been exceeded.


  • For Plesk 10.x and 11.0.9 follow these steps:

    Increase the FcgidIOTimeout value in fcgid.conf and restart Apache.

    CentOS: /etc/httpd/conf.d/fcgid.conf

    Debian: /etc/apache2/mods-enabled/fcgid.conf

  • Since Plesk 11.5, according to [Plesk 11.5 Release Notes], (http://download1.parallels.com/Plesk/PP11/11.5/release-notes/parallels-plesk-panel-11.5-for-linux-based-os.html#2 "title") "FcgidIOTimeout" parameter is set to the same value as max_execution_time php parameter.

    If you face this issue in Plesk 11.5 or 12.x, check this article #127621.

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