If you install Memcached on WordPress and use a multi-server setup, you can simply reduce the DB queries by 50%. If you are interest and want to give it a try, you can simply install the plugin by following our step-by-step tutorial.
How To Install Memacached:
- Install Memcached using this command: sudo apt-get install memcached.
- After the installation finishes, you will have to configure Memcached by using a .conf file: vi /etc/memcached.conf.
- As you will notice, in the configuration file there will be some parameters. You can leave as default the -d, -u and logfile parameters. Please be careful and change the -m, -p and -i values for your servers. The -l parameter value has to be replaced from 127.0.0.1 to an address of your server. After you have finished configuring enter this command: service memcached restart or /etc/init.d/memcached restart.
How to use Memcached on WordPress:
Next thing to do is to setup WordPress so it can save files using Memcached. You have to follow this address ( www.wordpress.org/extend/plugins/memcached ) and install the plugin for WordPress. Keep in mind that you have to copy the files into the wp-content directory and not in the plugins directory.
In order to make Memcached work, you will also have to install another plugin called PECL ( which is a Memcached extension ). You can download it from www.peck.php.net/package/memcache. Now is time to setupWordPress to make us of the Memcached plugin. Please open the wp-config file and enter this command:
global $memcached_servers; $memcached_servers = array(‘default’ => array(‘memcache-server-ip-or-name:11211?));
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