* **max_processes_backend** - Maximum number of concurrent database processes for background tasks. Default value is 5.
* **max_processes_frontend** - Maximum number of concurrent database processes for foreground tasks. Default value is 20.
* **min_poll_interval** - minimal distance in minutes between two polls for a contact. Default is 1. Reasonable values are between 1 and 59.
-* **memcache** (Boolean) - Use memcache. To use memcache the PECL extension "memcache" has to be installed and activated.
-* **memcache_host** - Hostname of the memcache daemon. Default is '127.0.0.1'.
-* **memcache_port** - Portnumber of the memcache daemon. Default is 11211.
+* **session_handler** ([database]|cache|native) - Whether to use Cache to store session data or to use PHP native session storage
+* **cache_driver** ([database]|memcache|memcached) - Whether to use Memcache or Memcached to store temporary cache
+* **memcache_host** - Host name of the memcache daemon. Default is '127.0.0.1'.
+* **memcache_port** - Port number of the memcache daemon. Default is 11211.
+* **memcached_host** - Host name of the memcached daemon. Default is '127.0.0.1'.
+* **memcached_port** - Port number of the memcached daemon. Default is 11211.
* **no_count** (Boolean) - Don't do count calculations (currently only when showing albums)
* **no_oembed** (Boolean) - Don't use OEmbed to fetch more information about a link.
* **no_smilies** (Boolean) - Don't show smilies.