MySQL replication

[chefy]

Hi,

I have configured a slave mysql server and replication is now running. I got it working by the mysql shell. Now I noticed that in config.php there is a section where you can enter the details of your mysql slave server:

	//	****** SLAVE DATABASE CONFIGURATION ******
	//	If you have multiple database backends, this is the information for your slave
	//	server. If you are not 100% sure you need to fill in this information,
	//	do not change any of the values here.
$config['SlaveServer']['servername'] = '';
$config['SlaveServer']['port'] = 3306;
$config['SlaveServer']['username'] = '';
$config['SlaveServer']['password'] = '';
$config['SlaveServer']['usepconnect'] = 0;

Should I fill that information? What is the purpose of doing that? Is it intended to distribute the load of my mysql master server to my mysql slave server?

Thanks.