Fog Tweaks

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Revision as of 17:56, 11 December 2014 by Wolfbane8653.3362 (talk | contribs) (Results)
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Tweaks

  • The following sections are devoted to strictly performance. If there are always pros and cons when tweaking to read carefully. All Pros/Cons should be added.
  • ALL these Settings must be changed by the FOG User. If tested continuously and fully approved then these may make it into the Default Setup of fog.
  • DO AT YOUR OWN RISK
  • Pros description of the good
  • Cons description of the bad
  • PvC A rating scale of 1 to 10, 1 being the ALL Con and 10 being ALL Pro
  • Dev. Approved One or multiple developers of Fog has approved this setting to be used in most installations of FOG.



Persistent DB Connection

  • Use a Persistent DB Connection. This uses the already established connection to get the data, rather than reopening the socket or TCP link
    1. Open this file /var/www/fog/lib/fog/Config.class.php
    2. Go to line:
      define('DATABASE_HOST',         'localhost');
    3. Change to:
      define('DATABASE_HOST',         'p:127.0.0.1');
    4. Restart mysql:
      service mysql restart
    5. Open this file /opt/fog/.fogsettings (so updates/upgrades to overwrite the settings above)
    6. Go to line:
      snmysqlhost="";
    7. Change to:
      snmysqlhost="p:127.0.0.1";
  • If you DB is on another server, use p:[ipaddress of DB server].



PHP Session Purging

  • Known bug in Ubuntu's config. It's running fuser for each PHP session file easily racking up thousands of processes.
  • Look for and purge old sessions better
    1. Open this file /etc/cron.d/php5
    2. Go to line:
      09,39 *    * * *    root  [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete
    3. Change to:
      09,39 *    * * *    root  [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete
    4. Restart apache
      service apache2 restart

Faster Updating

Results

Option Pros Cons PvC Dev. Approved
Persistent DB Connection Speed in Web GUI response time Connection is always open 9
PHP Session Purging Purges Old sessions Better None 10