Apache hangs in Ubuntu 16.04

Discussion in 'ISPConfig 3 Priority Support' started by kisote, Jun 14, 2017.

  1. kisote

    kisote New Member HowtoForge Supporter

    Hi. I have a problem with my web server (Ubuntu 16.04 + ISPconfig 3.1). Every day or two 'apache' hangs and I need to reboot the server. The resources at there moment are in high level, but the server has 4GB of ram and no much traffic. The /var/log/apache/error.php shows this message before to the hang:

    [mpm_prefork:error] [pid 2178] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting

    Another line that appears ocasinaly:
    [mpm_prefork:warn] [pid 2178] AH00167: long lost child came home! (pid 2186)

    I changed the value MaxRequestWorkers to 256 in /etc/apache2/mods-enabled/mpm_prefork.conf (default is 150) but the problem persists.

    Any idea of what happen? Thanks.
     
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    Check if the 'vlogger' package is installed and if not, try to install it with apt 'apt-get install vlogger' and then restart apache.
     
  3. kisote

    kisote New Member HowtoForge Supporter

    Hi Till.
    Thanks for your reply, but Vlogger is already installed:
     
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    another possibility for this can be long running script processes like php processes. you can e.g. try to find them with the 'lsof -p' command.
     

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