this was defined in app/config/core.php:
Configure::write('Session.save', 'php');
most likely it looks as below:
session.save_handler = files
session.save_path = "/var/lib/php/session"
this kind of file based session/cache will not work correctly under load balancer/multi web app servers.
the solution is using database or Memcache.
For using Memcache, we should change the config to:
Configure::write('Session.save', 'cache');
and enable the Memcache engine in core.php
Cache::config('default', array(
'engine' => 'Memcache', //[required]
'duration'=> 3600, //[optional]
'probability'=> 100, //[optional]
'prefix' => Inflector::slug(APP_DIR) . '_', //[optional] prefix every cache file with this string
'servers' => array(
'127.0.0.1:11211' // localhost, default port 11211
), //[optional]
'compress' => false, // [optional] compress data in Memcache (slower, but uses less memory)
));
we can check if the memcache has been installed and running by phpinfo() and ps -ef|grep memcache
but unfortunately, even you installed/configured memcache and cakephp well both, this will still not work.
you will lose sessions when navigating pages.
if you enable debug mode, you will see errors in the bottom of the page:
Fatal error: Class 'Debugger' not found in /var/www/cake/libs/debugger.php _disibledevent=> + Configure::read('Session.save') == 'database')
+ && function_exists('session_write_close')) {
+ session_write_close();
+ }
+
$this->close();
}
}
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